1045685187 has 32 divisors (see below), whose sum is σ = 1585612800. Its totient is φ = 680788224.

The previous prime is 1045685171. The next prime is 1045685189. The reversal of 1045685187 is 7815865401.

1045685187 is a `hidden beast` number, since 1 + 0 + 4 + 568 + 5 + 1 + 87 = 666.

It is not a de Polignac number, because 1045685187 - 2⁴ = 1045685171 is a prime.

It is a super-2 number, since 2×1045685187² = 2186915020622449938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1045685189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1125139 + ... + 1126067.

It is an arithmetic number, because the mean of its divisors is an integer number (49550400).

Almost surely, 2^1045685187 is an apocalyptic number.

1045685187 is a deficient number, since it is larger than the sum of its proper divisors (539927613).

1045685187 is an equidigital number, since it uses as much as digits as its factorization.

1045685187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The square root of 1045685187 is about 32337.0559420613. The cubic root of 1045685187 is about 1015.0022040445.

The spelling of 1045685187 in words is "one billion, forty-five million, six hundred eighty-five thousand, one hundred eighty-seven".