131461816 has 16 divisors (see below), whose sum is σ = 260990640. Its totient is φ = 61864320.

The previous prime is 131461807. The next prime is 131461819. The reversal of 131461816 is 618164131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131461819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483180 + ... + 483451.

It is an arithmetic number, because the mean of its divisors is an integer number (16311915).

Almost surely, 2^131461816 is an apocalyptic number.

It is an amenable number.

131461816 is a deficient number, since it is larger than the sum of its proper divisors (129528824).

131461816 is a wasteful number, since it uses less digits than its factorization.

131461816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966654 (or 966650 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 131461816 is about 11465.6799187837. The cubic root of 131461816 is about 508.4714143448.

The spelling of 131461816 in words is "one hundred thirty-one million, four hundred sixty-one thousand, eight hundred sixteen".