131523631654 has 16 divisors (see below), whose sum is σ = 197835374592. Its totient is φ = 65578568008.

The previous prime is 131523631609. The next prime is 131523631703. The reversal of 131523631654 is 456136325131.

It is a congruent number.

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, 5797257 + ... + 5819899.

It is an arithmetic number, because the mean of its divisors is an integer number (12364710912).

Almost surely, 2^131523631654 is an apocalyptic number.

131523631654 is a deficient number, since it is larger than the sum of its proper divisors (66311742938).

131523631654 is a wasteful number, since it uses less digits than its factorization.

131523631654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30611.

The product of its digits is 194400, while the sum is 40.

Adding to 131523631654 its reverse (456136325131), we get a palindrome (587659956785).

The spelling of 131523631654 in words is "one hundred thirty-one billion, five hundred twenty-three million, six hundred thirty-one thousand, six hundred fifty-four".