99589157 has 2 divisors, whose sum is σ = 99589158. Its totient is φ = 99589156.

The previous prime is 99589129. The next prime is 99589159. The reversal of 99589157 is 75198599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92756161 + 6832996 = 9631^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 99589157 - 2²⁰ = 98540581 is a prime.

Together with 99589159, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99589099 and 99589108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99589159) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49794578 + 49794579.

It is an arithmetic number, because the mean of its divisors is an integer number (49794579).

Almost surely, 2^99589157 is an apocalyptic number.

It is an amenable number.

99589157 is a deficient number, since it is larger than the sum of its proper divisors (1).

99589157 is an equidigital number, since it uses as much as digits as its factorization.

99589157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 53.

The square root of 99589157 is about 9979.4367075502. The cubic root of 99589157 is about 463.5223560942.

The spelling of 99589157 in words is "ninety-nine million, five hundred eighty-nine thousand, one hundred fifty-seven".