64757146 has 4 divisors (see below), whose sum is σ = 97135722. Its totient is φ = 32378572.

The previous prime is 64757137. The next prime is 64757179. The reversal of 64757146 is 64175746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64175746 = 2 ⋅32087873.

It can be written as a sum of positive squares in only one way, i.e., 62964225 + 1792921 = 7935^2 + 1339^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 64757099 and 64757108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16189285 + ... + 16189288.

Almost surely, 2^64757146 is an apocalyptic number.

64757146 is a deficient number, since it is larger than the sum of its proper divisors (32378576).

64757146 is a wasteful number, since it uses less digits than its factorization.

64757146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32378575.

The product of its digits is 141120, while the sum is 40.

The square root of 64757146 is about 8047.1824882999. The cubic root of 64757146 is about 401.5712076851.

The spelling of 64757146 in words is "sixty-four million, seven hundred fifty-seven thousand, one hundred forty-six".