2171150904 has 32 divisors (see below), whose sum is σ = 5845407120. Its totient is φ = 668046336.

The previous prime is 2171150899. The next prime is 2171150911. The reversal of 2171150904 is 4090511712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3479097 + ... + 3479720.

Almost surely, 2^2171150904 is an apocalyptic number.

2171150904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2171150904 is an abundant number, since it is smaller than the sum of its proper divisors (3674256216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2171150904 is a wasteful number, since it uses less digits than its factorization.

2171150904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6958839 (or 6958835 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 2171150904 is about 46595.6103511908. The cubic root of 2171150904 is about 1294.8814317784.

The spelling of 2171150904 in words is "two billion, one hundred seventy-one million, one hundred fifty thousand, nine hundred four".