988157 has 2 divisors, whose sum is σ = 988158. Its totient is φ = 988156.

The previous prime is 988147. The next prime is 988199. The reversal of 988157 is 751889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 988036 + 121 = 994^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 988157 - 2⁶ = 988093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 988157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494078 + 494079.

It is an arithmetic number, because the mean of its divisors is an integer number (494079).

2⁹⁸⁸¹⁵⁷ is an apocalyptic number.

It is an amenable number.

988157 is a deficient number, since it is larger than the sum of its proper divisors (1).

988157 is an equidigital number, since it uses as much as digits as its factorization.

988157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 38.

The square root of 988157 is about 994.0608633278. The cubic root of 988157 is about 99.6036645910.

The spelling of 988157 in words is "nine hundred eighty-eight thousand, one hundred fifty-seven".