131650465 has 16 divisors (see below), whose sum is σ = 167581008. Its totient is φ = 98942976.

The previous prime is 131650457. The next prime is 131650469. The reversal of 131650465 is 564056131.

It can be written as a sum of positive squares in 8 ways, for example, as 43681 + 131606784 = 209^2 + 11472^2 .

It is a cyclic number.

It is not a de Polignac number, because 131650465 - 2³ = 131650457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131650469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61249 + ... + 63361.

It is an arithmetic number, because the mean of its divisors is an integer number (10473813).

Almost surely, 2^131650465 is an apocalyptic number.

It is an amenable number.

131650465 is a deficient number, since it is larger than the sum of its proper divisors (35930543).

131650465 is a wasteful number, since it uses less digits than its factorization.

131650465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 131650465 is about 11473.9036513298. The cubic root of 131650465 is about 508.7145185911.

The spelling of 131650465 in words is "one hundred thirty-one million, six hundred fifty thousand, four hundred sixty-five".