188798164 has 6 divisors (see below), whose sum is σ = 330396794. Its totient is φ = 94399080.

The previous prime is 188798143. The next prime is 188798249. The reversal of 188798164 is 461897881.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 146652100 + 42146064 = 12110^2 + 6492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23599767 + ... + 23599774.

Almost surely, 2^188798164 is an apocalyptic number.

It is an amenable number.

188798164 is a deficient number, since it is larger than the sum of its proper divisors (141598630).

188798164 is a wasteful number, since it uses less digits than its factorization.

188798164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47199545 (or 47199543 counting only the distinct ones).

The product of its digits is 774144, while the sum is 52.

The square root of 188798164 is about 13740.3844196587. The cubic root of 188798164 is about 573.6749972127.

The spelling of 188798164 in words is "one hundred eighty-eight million, seven hundred ninety-eight thousand, one hundred sixty-four".