122499997 has 2 divisors, whose sum is σ = 122499998. Its totient is φ = 122499996.

The previous prime is 122499967. The next prime is 122500019. The reversal of 122499997 is 799994221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97239321 + 25260676 = 9861^2 + 5026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122499997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122499967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61249998 + 61249999.

It is an arithmetic number, because the mean of its divisors is an integer number (61249999).

Almost surely, 2^122499997 is an apocalyptic number.

It is an amenable number.

122499997 is a deficient number, since it is larger than the sum of its proper divisors (1).

122499997 is an equidigital number, since it uses as much as digits as its factorization.

122499997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 52.

The square root of 122499997 is about 11067.9716750631. The cubic root of 122499997 is about 496.6441901354.

The spelling of 122499997 in words is "one hundred twenty-two million, four hundred ninety-nine thousand, nine hundred ninety-seven".