122125387 has 2 divisors, whose sum is σ = 122125388. Its totient is φ = 122125386.

The previous prime is 122125379. The next prime is 122125391. The reversal of 122125387 is 783521221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122125387 - 2³ = 122125379 is a prime.

It is a super-2 number, since 2×122125387² = 29829220299799538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122125307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61062693 + 61062694.

It is an arithmetic number, because the mean of its divisors is an integer number (61062694).

Almost surely, 2^122125387 is an apocalyptic number.

122125387 is a deficient number, since it is larger than the sum of its proper divisors (1).

122125387 is an equidigital number, since it uses as much as digits as its factorization.

122125387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 122125387 is about 11051.0355623353. The cubic root of 122125387 is about 496.1374204624.

The spelling of 122125387 in words is "one hundred twenty-two million, one hundred twenty-five thousand, three hundred eighty-seven".