131534155043442 has 24 divisors (see below), whose sum is σ = 285170701330944. Its totient is φ = 43817021106264.

The previous prime is 131534155043441. The next prime is 131534155043461. The reversal of 131534155043442 is 244340551435131.

131534155043442 is a `hidden beast` number, since 1 + 3 + 1 + 53 + 4 + 1 + 550 + 4 + 3 + 4 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (131534155043441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2308074178 + ... + 2308131165.

It is an arithmetic number, because the mean of its divisors is an integer number (11882112555456).

Almost surely, 2^{131534155043442} is an apocalyptic number.

131534155043442 is an abundant number, since it is smaller than the sum of its proper divisors (153636546287502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131534155043442 is a wasteful number, since it uses less digits than its factorization.

131534155043442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616206934 (or 4616206931 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 131534155043442 in words is "one hundred thirty-one trillion, five hundred thirty-four billion, one hundred fifty-five million, forty-three thousand, four hundred forty-two".