122043157 has 2 divisors, whose sum is σ = 122043158. Its totient is φ = 122043156.

The previous prime is 122043151. The next prime is 122043167. The reversal of 122043157 is 751340221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118504996 + 3538161 = 10886^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 122043157 - 2¹¹ = 122041109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122043151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61021578 + 61021579.

It is an arithmetic number, because the mean of its divisors is an integer number (61021579).

Almost surely, 2^122043157 is an apocalyptic number.

It is an amenable number.

122043157 is a deficient number, since it is larger than the sum of its proper divisors (1).

122043157 is an equidigital number, since it uses as much as digits as its factorization.

122043157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 122043157 is about 11047.3144700420. The cubic root of 122043157 is about 496.0260416543.

Adding to 122043157 its reverse (751340221), we get a palindrome (873383378).

The spelling of 122043157 in words is "one hundred twenty-two million, forty-three thousand, one hundred fifty-seven".