131855040 has 140 divisors (see below), whose sum is σ = 469123776. Its totient is φ = 35154432.

The previous prime is 131855039. The next prime is 131855081. The reversal of 131855040 is 40558131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131854995 and 131855013.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23377 + ... + 28463.

Almost surely, 2^131855040 is an apocalyptic number.

131855040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131855040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234561888).

131855040 is an abundant number, since it is smaller than the sum of its proper divisors (337268736).

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

131855040 is an equidigital number, since it uses as much as digits as its factorization.

131855040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116 (or 5097 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 131855040 is about 11482.8149858822. The cubic root of 131855040 is about 508.9778836903.

It can be divided in two parts, 13185 and 5040, that added together give a square (18225 = 135²).

The spelling of 131855040 in words is "one hundred thirty-one million, eight hundred fifty-five thousand, forty".