97755157 has 2 divisors, whose sum is σ = 97755158. Its totient is φ = 97755156.

The previous prime is 97755149. The next prime is 97755167. The reversal of 97755157 is 75155779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91374481 + 6380676 = 9559^2 + 2526^2 .

It is an emirp because it is prime and its reverse (75155779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97755157 - 2³ = 97755149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97755127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48877578 + 48877579.

It is an arithmetic number, because the mean of its divisors is an integer number (48877579).

Almost surely, 2^97755157 is an apocalyptic number.

It is an amenable number.

97755157 is a deficient number, since it is larger than the sum of its proper divisors (1).

97755157 is an equidigital number, since it uses as much as digits as its factorization.

97755157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 385875, while the sum is 46.

The square root of 97755157 is about 9887.1207639029. The cubic root of 97755157 is about 460.6593521815.

The spelling of 97755157 in words is "ninety-seven million, seven hundred fifty-five thousand, one hundred fifty-seven".