131626890 has 32 divisors (see below), whose sum is σ = 351005760. Its totient is φ = 35100432.

The previous prime is 131626883. The next prime is 131626897. The reversal of 131626890 is 98626131.

It is an interprime number because it is at equal distance from previous prime (131626883) and next prime (131626897).

It is not an unprimeable number, because it can be changed into a prime (131626897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243484 + ... + 244023.

It is an arithmetic number, because the mean of its divisors is an integer number (10968930).

Almost surely, 2^131626890 is an apocalyptic number.

131626890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131626890 is an abundant number, since it is smaller than the sum of its proper divisors (219378870).

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

131626890 is a wasteful number, since it uses less digits than its factorization.

131626890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487523 (or 487517 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 131626890 is about 11472.8762740648. The cubic root of 131626890 is about 508.6841511564.

The spelling of 131626890 in words is "one hundred thirty-one million, six hundred twenty-six thousand, eight hundred ninety".