64122365 has 4 divisors (see below), whose sum is σ = 76946844. Its totient is φ = 51297888.

The previous prime is 64122349. The next prime is 64122379. The reversal of 64122365 is 56322146.

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 36517849 + 27604516 = 6043^2 + 5254^2 .

It is a cyclic number.

It is not a de Polignac number, because 64122365 - 2⁴ = 64122349 is a prime.

It is a super-2 number, since 2×64122365² = 8223355386386450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6412232 + ... + 6412241.

It is an arithmetic number, because the mean of its divisors is an integer number (19236711).

Almost surely, 2^64122365 is an apocalyptic number.

It is an amenable number.

64122365 is a deficient number, since it is larger than the sum of its proper divisors (12824479).

64122365 is a wasteful number, since it uses less digits than its factorization.

64122365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12824478.

The product of its digits is 8640, while the sum is 29.

The square root of 64122365 is about 8007.6441604257. The cubic root of 64122365 is about 400.2547647861.

The spelling of 64122365 in words is "sixty-four million, one hundred twenty-two thousand, three hundred sixty-five".