65144793 has 16 divisors (see below), whose sum is σ = 99388800. Its totient is φ = 37180416.

The previous prime is 65144789. The next prime is 65144797. The reversal of 65144793 is 39744156.

It is an interprime number because it is at equal distance from previous prime (65144789) and next prime (65144797).

It is not a de Polignac number, because 65144793 - 2² = 65144789 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65144797) 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, 24283 + ... + 26831.

It is an arithmetic number, because the mean of its divisors is an integer number (6211800).

Almost surely, 2^65144793 is an apocalyptic number.

It is an amenable number.

65144793 is a deficient number, since it is larger than the sum of its proper divisors (34244007).

65144793 is a wasteful number, since it uses less digits than its factorization.

65144793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776.

The product of its digits is 90720, while the sum is 39.

The square root of 65144793 is about 8071.2324337737. The cubic root of 65144793 is about 402.3709046790.

The spelling of 65144793 in words is "sixty-five million, one hundred forty-four thousand, seven hundred ninety-three".