131645055 has 32 divisors (see below), whose sum is σ = 218453760. Its totient is φ = 67646720.

The previous prime is 131645051. The next prime is 131645069. The reversal of 131645055 is 550546131.

It is not a de Polignac number, because 131645055 - 2² = 131645051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131645051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49756 + ... + 52334.

It is an arithmetic number, because the mean of its divisors is an integer number (6826680).

Almost surely, 2^131645055 is an apocalyptic number.

131645055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131645055 is a deficient number, since it is larger than the sum of its proper divisors (86808705).

131645055 is a wasteful number, since it uses less digits than its factorization.

131645055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 131645055 is about 11473.6678965360. The cubic root of 131645055 is about 508.7075501811.

The spelling of 131645055 in words is "one hundred thirty-one million, six hundred forty-five thousand, fifty-five".