64974113 has 4 divisors (see below), whose sum is σ = 65333268. Its totient is φ = 64614960.

The previous prime is 64974101. The next prime is 64974127. The reversal of 64974113 is 31147946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31888609 + 33085504 = 5647^2 + 5752^2 .

It is a cyclic number.

It is not a de Polignac number, because 64974113 - 2¹⁴ = 64957729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64974313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179306 + ... + 179667.

It is an arithmetic number, because the mean of its divisors is an integer number (16333317).

Almost surely, 2^64974113 is an apocalyptic number.

It is an amenable number.

64974113 is a deficient number, since it is larger than the sum of its proper divisors (359155).

64974113 is a wasteful number, since it uses less digits than its factorization.

64974113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359154.

The product of its digits is 18144, while the sum is 35.

The square root of 64974113 is about 8060.6521448329. The cubic root of 64974113 is about 402.0191920905.

The spelling of 64974113 in words is "sixty-four million, nine hundred seventy-four thousand, one hundred thirteen".