102188157 has 8 divisors (see below), whose sum is σ = 136474176. Its totient is φ = 68013792.

The previous prime is 102188153. The next prime is 102188161. The reversal of 102188157 is 751881201.

It is an interprime number because it is at equal distance from previous prime (102188153) and next prime (102188161).

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

It is not a de Polignac number, because 102188157 - 2² = 102188153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102188153) 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, 25753 + ... + 29454.

It is an arithmetic number, because the mean of its divisors is an integer number (17059272).

Almost surely, 2^102188157 is an apocalyptic number.

It is an amenable number.

102188157 is a deficient number, since it is larger than the sum of its proper divisors (34286019).

102188157 is an equidigital number, since it uses as much as digits as its factorization.

102188157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55827.

The product of its (nonzero) digits is 4480, while the sum is 33.

The square root of 102188157 is about 10108.8158060180. The cubic root of 102188157 is about 467.5199941881.

The spelling of 102188157 in words is "one hundred two million, one hundred eighty-eight thousand, one hundred fifty-seven".