402890151253 has 4 divisors (see below), whose sum is σ = 402946169868. Its totient is φ = 402834132640.

The previous prime is 402890151239. The next prime is 402890151263. The reversal of 402890151253 is 352151098204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59935853124 + 342954298129 = 244818^2 + 585623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402890151253 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402890151263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27998518 + ... + 28012903.

It is an arithmetic number, because the mean of its divisors is an integer number (100736542467).

Almost surely, 2^402890151253 is an apocalyptic number.

It is an amenable number.

402890151253 is a deficient number, since it is larger than the sum of its proper divisors (56018615).

402890151253 is an equidigital number, since it uses as much as digits as its factorization.

402890151253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56018614.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 402890151253 in words is "four hundred two billion, eight hundred ninety million, one hundred fifty-one thousand, two hundred fifty-three".