122955929 has 2 divisors, whose sum is σ = 122955930. Its totient is φ = 122955928.

The previous prime is 122955913. The next prime is 122955949. The reversal of 122955929 is 929559221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122655625 + 300304 = 11075^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 122955929 - 2⁴ = 122955913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122955929.

It is not a weakly prime, because it can be changed into another prime (122955949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61477964 + 61477965.

It is an arithmetic number, because the mean of its divisors is an integer number (61477965).

Almost surely, 2^122955929 is an apocalyptic number.

It is an amenable number.

122955929 is a deficient number, since it is larger than the sum of its proper divisors (1).

122955929 is an equidigital number, since it uses as much as digits as its factorization.

122955929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 44.

The square root of 122955929 is about 11088.5494542794. The cubic root of 122955929 is about 497.2595796328.

The spelling of 122955929 in words is "one hundred twenty-two million, nine hundred fifty-five thousand, nine hundred twenty-nine".