157149049 has 2 divisors, whose sum is σ = 157149050. Its totient is φ = 157149048.

The previous prime is 157149029. The next prime is 157149053. The reversal of 157149049 is 940941751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145805625 + 11343424 = 12075^2 + 3368^2 .

It is a cyclic number.

It is not a de Polignac number, because 157149049 - 2⁵ = 157149017 is a prime.

It is not a weakly prime, because it can be changed into another prime (157149029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78574524 + 78574525.

It is an arithmetic number, because the mean of its divisors is an integer number (78574525).

Almost surely, 2^157149049 is an apocalyptic number.

It is an amenable number.

157149049 is a deficient number, since it is larger than the sum of its proper divisors (1).

157149049 is an equidigital number, since it uses as much as digits as its factorization.

157149049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 157149049 is about 12535.9103777907. The cubic root of 157149049 is about 539.6397334061.

The spelling of 157149049 in words is "one hundred fifty-seven million, one hundred forty-nine thousand, forty-nine".