64312245 has 32 divisors (see below), whose sum is σ = 120355200. Its totient is φ = 32493312.

The previous prime is 64312229. The next prime is 64312279. The reversal of 64312245 is 54221346.

64312245 is a `hidden beast` number, since 6 + 431 + 224 + 5 = 666.

It is not a de Polignac number, because 64312245 - 2⁴ = 64312229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9972 + ... + 15101.

It is an arithmetic number, because the mean of its divisors is an integer number (3761100).

Almost surely, 2^64312245 is an apocalyptic number.

It is an amenable number.

64312245 is a deficient number, since it is larger than the sum of its proper divisors (56042955).

64312245 is a wasteful number, since it uses less digits than its factorization.

64312245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25106 (or 25100 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 64312245 is about 8019.4915674250. The cubic root of 64312245 is about 400.6494553653.

The spelling of 64312245 in words is "sixty-four million, three hundred twelve thousand, two hundred forty-five".