157363121 has 2 divisors, whose sum is σ = 157363122. Its totient is φ = 157363120.

The previous prime is 157363069. The next prime is 157363123. The reversal of 157363121 is 121363751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147282496 + 10080625 = 12136^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 157363121 - 2⁶ = 157363057 is a prime.

Together with 157363123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157363123) 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, 78681560 + 78681561.

It is an arithmetic number, because the mean of its divisors is an integer number (78681561).

Almost surely, 2^157363121 is an apocalyptic number.

It is an amenable number.

157363121 is a deficient number, since it is larger than the sum of its proper divisors (1).

157363121 is an equidigital number, since it uses as much as digits as its factorization.

157363121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 157363121 is about 12544.4458227536. The cubic root of 157363121 is about 539.8846587216.

The spelling of 157363121 in words is "one hundred fifty-seven million, three hundred sixty-three thousand, one hundred twenty-one".