1639054156 has 12 divisors (see below), whose sum is σ = 2868656392. Its totient is φ = 819438048.

The previous prime is 1639054127. The next prime is 1639054187. The reversal of 1639054156 is 6514509361.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 36256 + ... + 67768.

Almost surely, 2^1639054156 is an apocalyptic number.

It is an amenable number.

1639054156 is a deficient number, since it is larger than the sum of its proper divisors (1229602236).

1639054156 is a wasteful number, since it uses less digits than its factorization.

1639054156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44520 (or 44518 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 1639054156 is about 40485.2338019678. The cubic root of 1639054156 is about 1179.0469552580.

The spelling of 1639054156 in words is "one billion, six hundred thirty-nine million, fifty-four thousand, one hundred fifty-six".