131656470 has 48 divisors (see below), whose sum is σ = 347321520. Its totient is φ = 31915840.

The previous prime is 131656463. The next prime is 131656477. The reversal of 131656470 is 74656131.

It is an interprime number because it is at equal distance from previous prime (131656463) and next prime (131656477).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131656477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14505 + ... + 21764.

It is an arithmetic number, because the mean of its divisors is an integer number (7235865).

Almost surely, 2^131656470 is an apocalyptic number.

131656470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131656470 is an abundant number, since it is smaller than the sum of its proper divisors (215665050).

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

131656470 is a wasteful number, since it uses less digits than its factorization.

131656470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36301 (or 36290 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 131656470 is about 11474.1653291209. The cubic root of 131656470 is about 508.7222531739.

The spelling of 131656470 in words is "one hundred thirty-one million, six hundred fifty-six thousand, four hundred seventy".