122993951 has 2 divisors, whose sum is σ = 122993952. Its totient is φ = 122993950.

The previous prime is 122993917. The next prime is 122993989. The reversal of 122993951 is 159399221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122993951 - 2¹⁴ = 122977567 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122993899 and 122993908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122993911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61496975 + 61496976.

It is an arithmetic number, because the mean of its divisors is an integer number (61496976).

Almost surely, 2^122993951 is an apocalyptic number.

122993951 is a deficient number, since it is larger than the sum of its proper divisors (1).

122993951 is an equidigital number, since it uses as much as digits as its factorization.

122993951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 41.

The square root of 122993951 is about 11090.2637930754. The cubic root of 122993951 is about 497.3108306660.

The spelling of 122993951 in words is "one hundred twenty-two million, nine hundred ninety-three thousand, nine hundred fifty-one".