121350157 has 2 divisors, whose sum is σ = 121350158. Its totient is φ = 121350156.

The previous prime is 121350149. The next prime is 121350179. The reversal of 121350157 is 751053121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91604041 + 29746116 = 9571^2 + 5454^2 .

It is a cyclic number.

It is not a de Polignac number, because 121350157 - 2³ = 121350149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121350137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60675078 + 60675079.

It is an arithmetic number, because the mean of its divisors is an integer number (60675079).

Almost surely, 2^121350157 is an apocalyptic number.

It is an amenable number.

121350157 is a deficient number, since it is larger than the sum of its proper divisors (1).

121350157 is an equidigital number, since it uses as much as digits as its factorization.

121350157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 121350157 is about 11015.9047290724. The cubic root of 121350157 is about 495.0853942394.

The spelling of 121350157 in words is "one hundred twenty-one million, three hundred fifty thousand, one hundred fifty-seven".