187494064 has 20 divisors (see below), whose sum is σ = 363648600. Its totient is φ = 93649280.

The previous prime is 187494049. The next prime is 187494079. The reversal of 187494064 is 460494781.

It is an interprime number because it is at equal distance from previous prime (187494049) and next prime (187494079).

It is a self number, because there is not a number n which added to its sum of digits gives 187494064.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11199 + ... + 22369.

It is an arithmetic number, because the mean of its divisors is an integer number (18182430).

Almost surely, 2^187494064 is an apocalyptic number.

It is an amenable number.

187494064 is a deficient number, since it is larger than the sum of its proper divisors (176154536).

187494064 is a wasteful number, since it uses less digits than its factorization.

187494064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12228 (or 12222 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 187494064 is about 13692.8471838402. The cubic root of 187494064 is about 572.3510811918.

The spelling of 187494064 in words is "one hundred eighty-seven million, four hundred ninety-four thousand, sixty-four".