131657143014442 has 16 divisors (see below), whose sum is σ = 198272069571240. Its totient is φ = 65566582065088.

The previous prime is 131657143014427. The next prime is 131657143014491. The reversal of 131657143014442 is 244410341756131.

It can be written as a sum of positive squares in 4 ways, for example, as 20360318842081 + 111296824172361 = 4512241^2 + 10549731^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131657143014392 and 131657143014401.

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, 30182113 + ... + 34267684.

Almost surely, 2^{131657143014442} is an apocalyptic number.

131657143014442 is a deficient number, since it is larger than the sum of its proper divisors (66614926556798).

131657143014442 is a wasteful number, since it uses less digits than its factorization.

131657143014442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64453865.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 131657143014442 in words is "one hundred thirty-one trillion, six hundred fifty-seven billion, one hundred forty-three million, fourteen thousand, four hundred forty-two".