188980257 has 8 divisors (see below), whose sum is σ = 256104640. Its totient is φ = 123921360.

The previous prime is 188980249. The next prime is 188980271. The reversal of 188980257 is 752089881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 188980257 - 2³ = 188980249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188980157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516157 + ... + 516522.

It is an arithmetic number, because the mean of its divisors is an integer number (32013080).

Almost surely, 2^188980257 is an apocalyptic number.

It is an amenable number.

188980257 is a deficient number, since it is larger than the sum of its proper divisors (67124383).

188980257 is a wasteful number, since it uses less digits than its factorization.

188980257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032743.

The product of its (nonzero) digits is 322560, while the sum is 48.

The square root of 188980257 is about 13747.0090201469. The cubic root of 188980257 is about 573.8593715960.

The spelling of 188980257 in words is "one hundred eighty-eight million, nine hundred eighty thousand, two hundred fifty-seven".