402135515252 has 12 divisors (see below), whose sum is σ = 705985515396. Its totient is φ = 200425368000.

The previous prime is 402135515233. The next prime is 402135515281. The reversal of 402135515252 is 252515531204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33875874916 + 368259640336 = 184054^2 + 606844^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160595999 + ... + 160598502.

It is an arithmetic number, because the mean of its divisors is an integer number (58832126283).

Almost surely, 2^402135515252 is an apocalyptic number.

It is an amenable number.

402135515252 is a deficient number, since it is larger than the sum of its proper divisors (303850000144).

402135515252 is a wasteful number, since it uses less digits than its factorization.

402135515252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321194818 (or 321194816 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 402135515252 in words is "four hundred two billion, one hundred thirty-five million, five hundred fifteen thousand, two hundred fifty-two".