131561354670 has 32 divisors (see below), whose sum is σ = 318873468960. Its totient is φ = 34735670400.

The previous prime is 131561354663. The next prime is 131561354699. The reversal of 131561354670 is 76453165131.

It is a happy number.

131561354670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21706765 + ... + 21712824.

It is an arithmetic number, because the mean of its divisors is an integer number (9964795905).

Almost surely, 2^131561354670 is an apocalyptic number.

131561354670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131561354670 is an abundant number, since it is smaller than the sum of its proper divisors (187312114290).

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

131561354670 is a wasteful number, since it uses less digits than its factorization.

131561354670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43419700.

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 131561354670 in words is "one hundred thirty-one billion, five hundred sixty-one million, three hundred fifty-four thousand, six hundred seventy".