188949497 has 8 divisors (see below), whose sum is σ = 206742432. Its totient is φ = 171259200.

The previous prime is 188949479. The next prime is 188949517. The reversal of 188949497 is 794949881.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188949497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188949427) 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, 21779 + ... + 29192.

It is an arithmetic number, because the mean of its divisors is an integer number (25842804).

Almost surely, 2^188949497 is an apocalyptic number.

It is an amenable number.

188949497 is a deficient number, since it is larger than the sum of its proper divisors (17792935).

188949497 is a wasteful number, since it uses less digits than its factorization.

188949497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51319.

The product of its digits is 5225472, while the sum is 59.

The square root of 188949497 is about 13745.8901857974. The cubic root of 188949497 is about 573.8282345302.

The spelling of 188949497 in words is "one hundred eighty-eight million, nine hundred forty-nine thousand, four hundred ninety-seven".