131522651402 has 16 divisors (see below), whose sum is σ = 197736577152. Its totient is φ = 65610524880.

The previous prime is 131522651383. The next prime is 131522651411. The reversal of 131522651402 is 204156225131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4761752 + ... + 4789292.

It is an arithmetic number, because the mean of its divisors is an integer number (12358536072).

Almost surely, 2^131522651402 is an apocalyptic number.

131522651402 is a deficient number, since it is larger than the sum of its proper divisors (66213925750).

131522651402 is a wasteful number, since it uses less digits than its factorization.

131522651402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32933.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 131522651402 its reverse (204156225131), we get a palindrome (335678876533).

The spelling of 131522651402 in words is "one hundred thirty-one billion, five hundred twenty-two million, six hundred fifty-one thousand, four hundred two".