122999347 has 2 divisors, whose sum is σ = 122999348. Its totient is φ = 122999346.

The previous prime is 122999339. The next prime is 122999381. The reversal of 122999347 is 743999221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122999347 - 2³ = 122999339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122999297 and 122999306.

It is not a weakly prime, because it can be changed into another prime (122999647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61499673 + 61499674.

It is an arithmetic number, because the mean of its divisors is an integer number (61499674).

Almost surely, 2^122999347 is an apocalyptic number.

122999347 is a deficient number, since it is larger than the sum of its proper divisors (1).

122999347 is an equidigital number, since it uses as much as digits as its factorization.

122999347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 122999347 is about 11090.5070668568. The cubic root of 122999347 is about 497.3181032459.

It can be divided in two parts, 1229 and 99347, that added together give a triangular number (100576 = T₄₄₈).

The spelling of 122999347 in words is "one hundred twenty-two million, nine hundred ninety-nine thousand, three hundred forty-seven".