157232389 has 2 divisors, whose sum is σ = 157232390. Its totient is φ = 157232388.

The previous prime is 157232377. The next prime is 157232401. The reversal of 157232389 is 983232751.

157232389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (157232377) and next prime (157232401).

It can be written as a sum of positive squares in only one way, i.e., 155201764 + 2030625 = 12458^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 157232389 - 2¹¹ = 157230341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157232329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78616194 + 78616195.

It is an arithmetic number, because the mean of its divisors is an integer number (78616195).

Almost surely, 2^157232389 is an apocalyptic number.

It is an amenable number.

157232389 is a deficient number, since it is larger than the sum of its proper divisors (1).

157232389 is an equidigital number, since it uses as much as digits as its factorization.

157232389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 157232389 is about 12539.2339877682. The cubic root of 157232389 is about 539.7351112821.

The spelling of 157232389 in words is "one hundred fifty-seven million, two hundred thirty-two thousand, three hundred eighty-nine".