64971150 has 24 divisors (see below), whose sum is σ = 161128824. Its totient is φ = 17325600.

The previous prime is 64971143. The next prime is 64971167. The reversal of 64971150 is 5117946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216421 + ... + 216720.

It is an arithmetic number, because the mean of its divisors is an integer number (6713701).

Almost surely, 2^64971150 is an apocalyptic number.

64971150 is an abundant number, since it is smaller than the sum of its proper divisors (96157674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64971150 is a wasteful number, since it uses less digits than its factorization.

64971150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433156 (or 433151 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 64971150 is about 8060.4683486755. The cubic root of 64971150 is about 402.0130809337.

The spelling of 64971150 in words is "sixty-four million, nine hundred seventy-one thousand, one hundred fifty".