157633249 has 2 divisors, whose sum is σ = 157633250. Its totient is φ = 157633248.

The previous prime is 157633219. The next prime is 157633261. The reversal of 157633249 is 942336751.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146531025 + 11102224 = 12105^2 + 3332^2 .

It is a cyclic number.

It is not a de Polignac number, because 157633249 - 2²⁵ = 124078817 is a prime.

It is not a weakly prime, because it can be changed into another prime (157633219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78816624 + 78816625.

It is an arithmetic number, because the mean of its divisors is an integer number (78816625).

Almost surely, 2^157633249 is an apocalyptic number.

It is an amenable number.

157633249 is a deficient number, since it is larger than the sum of its proper divisors (1).

157633249 is an equidigital number, since it uses as much as digits as its factorization.

157633249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 157633249 is about 12555.2080428801. The cubic root of 157633249 is about 540.1934023748.

The spelling of 157633249 in words is "one hundred fifty-seven million, six hundred thirty-three thousand, two hundred forty-nine".