1342254421 has 2 divisors, whose sum is σ = 1342254422. Its totient is φ = 1342254420.

The previous prime is 1342254413. The next prime is 1342254437. The reversal of 1342254421 is 1244522431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1292043025 + 50211396 = 35945^2 + 7086^2 .

It is an emirp because it is prime and its reverse (1244522431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1342254421 - 2³ = 1342254413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1342254421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342254721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671127210 + 671127211.

It is an arithmetic number, because the mean of its divisors is an integer number (671127211).

Almost surely, 2^1342254421 is an apocalyptic number.

It is an amenable number.

1342254421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342254421 is an equidigital number, since it uses as much as digits as its factorization.

1342254421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 28.

The square root of 1342254421 is about 36636.7905390197. The cubic root of 1342254421 is about 1103.0916937099.

Adding to 1342254421 its reverse (1244522431), we get a palindrome (2586776852).

The spelling of 1342254421 in words is "one billion, three hundred forty-two million, two hundred fifty-four thousand, four hundred twenty-one".