64597138 has 8 divisors (see below), whose sum is σ = 97160832. Its totient is φ = 32210196.

The previous prime is 64597111. The next prime is 64597151. The reversal of 64597138 is 83179546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 64597094 and 64597103.

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, 43270 + ... + 44737.

It is an arithmetic number, because the mean of its divisors is an integer number (12145104).

Almost surely, 2^64597138 is an apocalyptic number.

64597138 is a deficient number, since it is larger than the sum of its proper divisors (32563694).

64597138 is a wasteful number, since it uses less digits than its factorization.

64597138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88376.

The product of its digits is 181440, while the sum is 43.

The square root of 64597138 is about 8037.2344746187. The cubic root of 64597138 is about 401.2401883581.

The spelling of 64597138 in words is "sixty-four million, five hundred ninety-seven thousand, one hundred thirty-eight".