402115253 has 2 divisors, whose sum is σ = 402115254. Its totient is φ = 402115252.

The previous prime is 402115237. The next prime is 402115271. The reversal of 402115253 is 352511204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314636644 + 87478609 = 17738^2 + 9353^2 .

It is a cyclic number.

It is not a de Polignac number, because 402115253 - 2⁴ = 402115237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402115283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201057626 + 201057627.

It is an arithmetic number, because the mean of its divisors is an integer number (201057627).

Almost surely, 2^402115253 is an apocalyptic number.

It is an amenable number.

402115253 is a deficient number, since it is larger than the sum of its proper divisors (1).

402115253 is an equidigital number, since it uses as much as digits as its factorization.

402115253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 402115253 is about 20052.8115983769. The cubic root of 402115253 is about 738.1027935096.

Adding to 402115253 its reverse (352511204), we get a palindrome (754626457).

The spelling of 402115253 in words is "four hundred two million, one hundred fifteen thousand, two hundred fifty-three".