65131465 has 16 divisors (see below), whose sum is σ = 92206080. Its totient is φ = 43220160.

The previous prime is 65131453. The next prime is 65131481. The reversal of 65131465 is 56413156.

It is not a de Polignac number, because 65131465 - 2⁷ = 65131337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28930 + ... + 31099.

It is an arithmetic number, because the mean of its divisors is an integer number (5762880).

Almost surely, 2^65131465 is an apocalyptic number.

It is an amenable number.

65131465 is a deficient number, since it is larger than the sum of its proper divisors (27074615).

65131465 is a wasteful number, since it uses less digits than its factorization.

65131465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60072.

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

The square root of 65131465 is about 8070.4067431574. The cubic root of 65131465 is about 402.3434623978.

The spelling of 65131465 in words is "sixty-five million, one hundred thirty-one thousand, four hundred sixty-five".