157603109 has 2 divisors, whose sum is σ = 157603110. Its totient is φ = 157603108.

The previous prime is 157603093. The next prime is 157603123. The reversal of 157603109 is 901306751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146942884 + 10660225 = 12122^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 157603109 - 2⁴ = 157603093 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 (157603129) 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, 78801554 + 78801555.

It is an arithmetic number, because the mean of its divisors is an integer number (78801555).

Almost surely, 2^157603109 is an apocalyptic number.

It is an amenable number.

157603109 is a deficient number, since it is larger than the sum of its proper divisors (1).

157603109 is an equidigital number, since it uses as much as digits as its factorization.

157603109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 157603109 is about 12554.0076867907. The cubic root of 157603109 is about 540.1589712569.

The spelling of 157603109 in words is "one hundred fifty-seven million, six hundred three thousand, one hundred nine".