157443959 has 2 divisors, whose sum is σ = 157443960. Its totient is φ = 157443958.

The previous prime is 157443943. The next prime is 157443961. The reversal of 157443959 is 959344751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157443959 - 2⁴ = 157443943 is a prime.

It is a Sophie Germain prime.

Together with 157443961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157443359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78721979 + 78721980.

It is an arithmetic number, because the mean of its divisors is an integer number (78721980).

Almost surely, 2^157443959 is an apocalyptic number.

157443959 is a deficient number, since it is larger than the sum of its proper divisors (1).

157443959 is an equidigital number, since it uses as much as digits as its factorization.

157443959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 157443959 is about 12547.6674724827. The cubic root of 157443959 is about 539.9770897916.

The spelling of 157443959 in words is "one hundred fifty-seven million, four hundred forty-three thousand, nine hundred fifty-nine".