123949307 has 2 divisors, whose sum is σ = 123949308. Its totient is φ = 123949306.

The previous prime is 123949303. The next prime is 123949337. The reversal of 123949307 is 703949321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123949307 - 2² = 123949303 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123949303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61974653 + 61974654.

It is an arithmetic number, because the mean of its divisors is an integer number (61974654).

Almost surely, 2^123949307 is an apocalyptic number.

123949307 is a deficient number, since it is larger than the sum of its proper divisors (1).

123949307 is an equidigital number, since it uses as much as digits as its factorization.

123949307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 123949307 is about 11133.2523100844. The cubic root of 123949307 is about 498.5951323910.

The spelling of 123949307 in words is "one hundred twenty-three million, nine hundred forty-nine thousand, three hundred seven".