64374121 has 16 divisors (see below), whose sum is σ = 78226560. Its totient is φ = 51713280.

The previous prime is 64374119. The next prime is 64374127. The reversal of 64374121 is 12147346.

It is a cyclic number.

It is not a de Polignac number, because 64374121 - 2¹ = 64374119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64374121.

It is not an unprimeable number, because it can be changed into a prime (64374127) 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, 31006 + ... + 33016.

It is an arithmetic number, because the mean of its divisors is an integer number (4889160).

Almost surely, 2^64374121 is an apocalyptic number.

It is an amenable number.

64374121 is a deficient number, since it is larger than the sum of its proper divisors (13852439).

64374121 is a wasteful number, since it uses less digits than its factorization.

64374121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304.

The product of its digits is 4032, while the sum is 28.

The square root of 64374121 is about 8023.3484904995. The cubic root of 64374121 is about 400.7779049291. Note that the first 3 decimals are identical.

The spelling of 64374121 in words is "sixty-four million, three hundred seventy-four thousand, one hundred twenty-one".