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1344210421 is a prime number
BaseRepresentation
bin101000000011111…
…0000010111110101
310110200100222001011
41100013300113311
510223104213141
6341215032221
745211412551
oct12007602765
93420328034
101344210421
1162a854204
1231620b671
131856470a8
14ca74c861
157d024881
hex501f05f5

1344210421 has 2 divisors, whose sum is σ = 1344210422. Its totient is φ = 1344210420.

The previous prime is 1344210403. The next prime is 1344210443. The reversal of 1344210421 is 1240124431.

It is a happy number.

It is an a-pointer prime, because the next prime (1344210443) can be obtained adding 1344210421 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929640100 + 414570321 = 30490^2 + 20361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344210421 - 25 = 1344210389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1344210392 and 1344210401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344220421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672105210 + 672105211.

It is an arithmetic number, because the mean of its divisors is an integer number (672105211).

Almost surely, 21344210421 is an apocalyptic number.

It is an amenable number.

1344210421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344210421 is an equidigital number, since it uses as much as digits as its factorization.

1344210421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1344210421 is about 36663.4752989948. The cubic root of 1344210421 is about 1103.6272603630.

Adding to 1344210421 its reverse (1240124431), we get a palindrome (2584334852).

The spelling of 1344210421 in words is "one billion, three hundred forty-four million, two hundred ten thousand, four hundred twenty-one".