1401343253 has 2 divisors, whose sum is σ = 1401343254. Its totient is φ = 1401343252.

The previous prime is 1401343247. The next prime is 1401343327. The reversal of 1401343253 is 3523431041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 823517809 + 577825444 = 28697^2 + 24038^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401343253 - 2¹⁴ = 1401326869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401343213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700671626 + 700671627.

It is an arithmetic number, because the mean of its divisors is an integer number (700671627).

Almost surely, 2^1401343253 is an apocalyptic number.

It is an amenable number.

1401343253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401343253 is an equidigital number, since it uses as much as digits as its factorization.

1401343253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1401343253 is about 37434.5195374537. The cubic root of 1401343253 is about 1119.0466092106.

Adding to 1401343253 its reverse (3523431041), we get a palindrome (4924774294).

The spelling of 1401343253 in words is "one billion, four hundred one million, three hundred forty-three thousand, two hundred fifty-three".