131526465 has 32 divisors (see below), whose sum is σ = 246107136. Its totient is φ = 58726080.

The previous prime is 131526449. The next prime is 131526487. The reversal of 131526465 is 564625131.

It is not a de Polignac number, because 131526465 - 2⁴ = 131526449 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10051 + ... + 19080.

It is an arithmetic number, because the mean of its divisors is an integer number (7690848).

Almost surely, 2^131526465 is an apocalyptic number.

131526465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131526465 is a deficient number, since it is larger than the sum of its proper divisors (114580671).

131526465 is a wasteful number, since it uses less digits than its factorization.

131526465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29189.

The product of its digits is 21600, while the sum is 33.

The square root of 131526465 is about 11468.4988119631. The cubic root of 131526465 is about 508.5547510440.

The spelling of 131526465 in words is "one hundred thirty-one million, five hundred twenty-six thousand, four hundred sixty-five".