64930155 has 8 divisors (see below), whose sum is σ = 103888272. Its totient is φ = 34629408.

The previous prime is 64930133. The next prime is 64930181. The reversal of 64930155 is 55103946.

It is a happy number.

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

It is not a de Polignac number, because 64930155 - 2⁸ = 64929899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164324 + ... + 2164353.

It is an arithmetic number, because the mean of its divisors is an integer number (12986034).

Almost surely, 2^64930155 is an apocalyptic number.

64930155 is a deficient number, since it is larger than the sum of its proper divisors (38958117).

64930155 is a wasteful number, since it uses less digits than its factorization.

64930155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328685.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 64930155 is about 8057.9249810358. The cubic root of 64930155 is about 401.9285100961.

The spelling of 64930155 in words is "sixty-four million, nine hundred thirty thousand, one hundred fifty-five".