122670731 has 2 divisors, whose sum is σ = 122670732. Its totient is φ = 122670730.

The previous prime is 122670721. The next prime is 122670749. The reversal of 122670731 is 137076221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122670731 - 2²⁶ = 55561867 is a prime.

It is a super-2 number, since 2×122670731² = 30096216488148722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122670694 and 122670703.

It is not a weakly prime, because it can be changed into another prime (122670721) 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, 61335365 + 61335366.

It is an arithmetic number, because the mean of its divisors is an integer number (61335366).

Almost surely, 2^122670731 is an apocalyptic number.

122670731 is a deficient number, since it is larger than the sum of its proper divisors (1).

122670731 is an equidigital number, since it uses as much as digits as its factorization.

122670731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 122670731 is about 11075.6819654593. The cubic root of 122670731 is about 496.8748151365.

The spelling of 122670731 in words is "one hundred twenty-two million, six hundred seventy thousand, seven hundred thirty-one".