157112489 has 2 divisors, whose sum is σ = 157112490. Its totient is φ = 157112488.

The previous prime is 157112467. The next prime is 157112509. The reversal of 157112489 is 984211751.

157112489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138768400 + 18344089 = 11780^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 157112489 - 2⁸ = 157112233 is a prime.

It is not a weakly prime, because it can be changed into another prime (157112089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78556244 + 78556245.

It is an arithmetic number, because the mean of its divisors is an integer number (78556245).

Almost surely, 2^157112489 is an apocalyptic number.

It is an amenable number.

157112489 is a deficient number, since it is larger than the sum of its proper divisors (1).

157112489 is an equidigital number, since it uses as much as digits as its factorization.

157112489 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 157112489 is about 12534.4520821614. The cubic root of 157112489 is about 539.5978819304.

The spelling of 157112489 in words is "one hundred fifty-seven million, one hundred twelve thousand, four hundred eighty-nine".