64120562 has 12 divisors (see below), whose sum is σ = 105719838. Its totient is φ = 29145600.

The previous prime is 64120477. The next prime is 64120601. The reversal of 64120562 is 26502146.

It can be written as a sum of positive squares in only one way, i.e., 57775201 + 6345361 = 7601^2 + 2519^2 .

It is a super-2 number, since 2×64120562² = 8222892942391688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132239 + ... + 132722.

Almost surely, 2^64120562 is an apocalyptic number.

64120562 is a deficient number, since it is larger than the sum of its proper divisors (41599276).

64120562 is a wasteful number, since it uses less digits than its factorization.

64120562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264985 (or 264974 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 64120562 is about 8007.5315797067. The cubic root of 64120562 is about 400.2510132812.

The spelling of 64120562 in words is "sixty-four million, one hundred twenty thousand, five hundred sixty-two".