65144485 has 16 divisors (see below), whose sum is σ = 92224512. Its totient is φ = 43228800.

The previous prime is 65144477. The next prime is 65144503. The reversal of 65144485 is 58444156.

It is not a de Polignac number, because 65144485 - 2³ = 65144477 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 28936 + ... + 31105.

It is an arithmetic number, because the mean of its divisors is an integer number (5764032).

Almost surely, 2^65144485 is an apocalyptic number.

It is an amenable number.

65144485 is a deficient number, since it is larger than the sum of its proper divisors (27080027).

65144485 is a wasteful number, since it uses less digits than its factorization.

65144485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60084.

The product of its digits is 76800, while the sum is 37.

The square root of 65144485 is about 8071.2133536414. The cubic root of 65144485 is about 402.3702705508.

The spelling of 65144485 in words is "sixty-five million, one hundred forty-four thousand, four hundred eighty-five".