159404957 has 2 divisors, whose sum is σ = 159404958. Its totient is φ = 159404956.

The previous prime is 159404951. The next prime is 159404969. The reversal of 159404957 is 759404951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145781476 + 13623481 = 12074^2 + 3691^2 .

It is an emirp because it is prime and its reverse (759404951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159404957 - 2⁴ = 159404941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159404951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79702478 + 79702479.

It is an arithmetic number, because the mean of its divisors is an integer number (79702479).

Almost surely, 2^159404957 is an apocalyptic number.

It is an amenable number.

159404957 is a deficient number, since it is larger than the sum of its proper divisors (1).

159404957 is an equidigital number, since it uses as much as digits as its factorization.

159404957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 159404957 is about 12625.5675912016. The cubic root of 159404957 is about 542.2096892928.

The spelling of 159404957 in words is "one hundred fifty-nine million, four hundred four thousand, nine hundred fifty-seven".