64122172 has 6 divisors (see below), whose sum is σ = 112213808. Its totient is φ = 32061084.

The previous prime is 64122151. The next prime is 64122187. The reversal of 64122172 is 27122146.

64122172 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64122172² = 8223305883995168, which contains 22 as substring.

64122172 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8015268 + ... + 8015275.

Almost surely, 2^64122172 is an apocalyptic number.

It is an amenable number.

64122172 is a deficient number, since it is larger than the sum of its proper divisors (48091636).

64122172 is a wasteful number, since it uses less digits than its factorization.

64122172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16030547 (or 16030545 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 64122172 is about 8007.6321094316. The cubic root of 64122172 is about 400.2543632141.

The spelling of 64122172 in words is "sixty-four million, one hundred twenty-two thousand, one hundred seventy-two".