1045640164 has 12 divisors (see below), whose sum is σ = 1830665088. Its totient is φ = 522593000.

The previous prime is 1045640143. The next prime is 1045640201. The reversal of 1045640164 is 4610465401.

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 3 ways as a sum of consecutive naturals, for example, 46192 + ... + 64999.

It is an arithmetic number, because the mean of its divisors is an integer number (152555424).

Almost surely, 2^1045640164 is an apocalyptic number.

It is an amenable number.

1045640164 is a deficient number, since it is larger than the sum of its proper divisors (785024924).

1045640164 is a wasteful number, since it uses less digits than its factorization.

1045640164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113546 (or 113544 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1045640164 is about 32336.3597827585. The cubic root of 1045640164 is about 1014.9876365307.

The spelling of 1045640164 in words is "one billion, forty-five million, six hundred forty thousand, one hundred sixty-four".