122625787 has 2 divisors, whose sum is σ = 122625788. Its totient is φ = 122625786.

The previous prime is 122625781. The next prime is 122625869. The reversal of 122625787 is 787526221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122625787 - 2³ = 122625779 is a prime.

It is not a weakly prime, because it can be changed into another prime (122625781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61312893 + 61312894.

It is an arithmetic number, because the mean of its divisors is an integer number (61312894).

Almost surely, 2^122625787 is an apocalyptic number.

122625787 is a deficient number, since it is larger than the sum of its proper divisors (1).

122625787 is an equidigital number, since it uses as much as digits as its factorization.

122625787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

The square root of 122625787 is about 11073.6528300286. The cubic root of 122625787 is about 496.8141261975.

The spelling of 122625787 in words is "one hundred twenty-two million, six hundred twenty-five thousand, seven hundred eighty-seven".