131865150 has 48 divisors (see below), whose sum is σ = 327729024. Its totient is φ = 35088480.

The previous prime is 131865137. The next prime is 131865163. The reversal of 131865150 is 51568131.

It is an interprime number because it is at equal distance from previous prime (131865137) and next prime (131865163).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123519 + ... + 124581.

It is an arithmetic number, because the mean of its divisors is an integer number (6827688).

Almost surely, 2^131865150 is an apocalyptic number.

131865150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131865150 is an abundant number, since it is smaller than the sum of its proper divisors (195863874).

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

131865150 is a wasteful number, since it uses less digits than its factorization.

131865150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 131865150 is about 11483.2552005083. The cubic root of 131865150 is about 508.9908920033.

It can be divided in two parts, 13186 and 5150, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 131865150 in words is "one hundred thirty-one million, eight hundred sixty-five thousand, one hundred fifty".