157793401 has 2 divisors, whose sum is σ = 157793402. Its totient is φ = 157793400.

The previous prime is 157793387. The next prime is 157793413. The reversal of 157793401 is 104397751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152275600 + 5517801 = 12340^2 + 2349^2 .

It is a cyclic number.

It is not a de Polignac number, because 157793401 - 2⁹ = 157792889 is a prime.

It is not a weakly prime, because it can be changed into another prime (157793491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78896700 + 78896701.

It is an arithmetic number, because the mean of its divisors is an integer number (78896701).

Almost surely, 2^157793401 is an apocalyptic number.

It is an amenable number.

157793401 is a deficient number, since it is larger than the sum of its proper divisors (1).

157793401 is an equidigital number, since it uses as much as digits as its factorization.

157793401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 157793401 is about 12561.5843347883. The cubic root of 157793401 is about 540.3762820917.

The spelling of 157793401 in words is "one hundred fifty-seven million, seven hundred ninety-three thousand, four hundred one".