131265045 has 12 divisors (see below), whose sum is σ = 227526156. Its totient is φ = 70008000.

The previous prime is 131265019. The next prime is 131265059. The reversal of 131265045 is 540562131.

131265045 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 650 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32182929 + 99082116 = 5673^2 + 9954^2 .

It is not a de Polignac number, because 131265045 - 2¹¹ = 131262997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1458456 + ... + 1458545.

It is an arithmetic number, because the mean of its divisors is an integer number (18960513).

Almost surely, 2^131265045 is an apocalyptic number.

131265045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131265045 is a deficient number, since it is larger than the sum of its proper divisors (96261111).

131265045 is a wasteful number, since it uses less digits than its factorization.

131265045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917012 (or 2917009 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 131265045 is about 11457.0958362056. The cubic root of 131265045 is about 508.2175956759.

The spelling of 131265045 in words is "one hundred thirty-one million, two hundred sixty-five thousand, forty-five".