157896961 has 2 divisors, whose sum is σ = 157896962. Its totient is φ = 157896960.

The previous prime is 157896953. The next prime is 157896983. The reversal of 157896961 is 169698751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106502400 + 51394561 = 10320^2 + 7169^2 .

It is a cyclic number.

It is not a de Polignac number, because 157896961 - 2³ = 157896953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157896899 and 157896908.

It is not a weakly prime, because it can be changed into another prime (157896161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78948480 + 78948481.

It is an arithmetic number, because the mean of its divisors is an integer number (78948481).

Almost surely, 2^157896961 is an apocalyptic number.

It is an amenable number.

157896961 is a deficient number, since it is larger than the sum of its proper divisors (1).

157896961 is an equidigital number, since it uses as much as digits as its factorization.

157896961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 52.

The square root of 157896961 is about 12565.7057501758. The cubic root of 157896961 is about 540.4944727752.

The spelling of 157896961 in words is "one hundred fifty-seven million, eight hundred ninety-six thousand, nine hundred sixty-one".