64902045 has 32 divisors (see below), whose sum is σ = 112557312. Its totient is φ = 31744512.

The previous prime is 64902011. The next prime is 64902083. The reversal of 64902045 is 54020946.

It is not a de Polignac number, because 64902045 - 2⁶ = 64901981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31569 + ... + 33561.

It is an arithmetic number, because the mean of its divisors is an integer number (3517416).

Almost surely, 2^64902045 is an apocalyptic number.

64902045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64902045 is a deficient number, since it is larger than the sum of its proper divisors (47655267).

64902045 is a wasteful number, since it uses less digits than its factorization.

64902045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 64902045 is about 8056.1805466362. The cubic root of 64902045 is about 401.8704998581.

The spelling of 64902045 in words is "sixty-four million, nine hundred two thousand, forty-five".