131620710 has 32 divisors (see below), whose sum is σ = 340189920. Its totient is φ = 32398848.

The previous prime is 131620691. The next prime is 131620711. The reversal of 131620710 is 17026131.

It is a super-2 number, since 2×131620710² = 34648022601808200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131620711) 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 15 ways as a sum of consecutive naturals, for example, 168355 + ... + 169134.

It is an arithmetic number, because the mean of its divisors is an integer number (10630935).

Almost surely, 2^131620710 is an apocalyptic number.

131620710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131620710 is an abundant number, since it is smaller than the sum of its proper divisors (208569210).

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

131620710 is a wasteful number, since it uses less digits than its factorization.

131620710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337512.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 131620710 is about 11472.6069400115. The cubic root of 131620710 is about 508.6761899734.

Adding to 131620710 its reverse (17026131), we get a palindrome (148646841).

The spelling of 131620710 in words is "one hundred thirty-one million, six hundred twenty thousand, seven hundred ten".