157428589 has 2 divisors, whose sum is σ = 157428590. Its totient is φ = 157428588.

The previous prime is 157428587. The next prime is 157428611. The reversal of 157428589 is 985824751.

It is a happy number.

157428589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92352100 + 65076489 = 9610^2 + 8067^2 .

It is a cyclic number.

It is not a de Polignac number, because 157428589 - 2¹ = 157428587 is a prime.

Together with 157428587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157428587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78714294 + 78714295.

It is an arithmetic number, because the mean of its divisors is an integer number (78714295).

Almost surely, 2^157428589 is an apocalyptic number.

It is an amenable number.

157428589 is a deficient number, since it is larger than the sum of its proper divisors (1).

157428589 is an equidigital number, since it uses as much as digits as its factorization.

157428589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 49.

The square root of 157428589 is about 12547.0549931050. The cubic root of 157428589 is about 539.9595179987.

The spelling of 157428589 in words is "one hundred fifty-seven million, four hundred twenty-eight thousand, five hundred eighty-nine".