126922999 has 4 divisors (see below), whose sum is σ = 145054864. Its totient is φ = 108791136.

The previous prime is 126922973. The next prime is 126923023. The reversal of 126922999 is 999229621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126922999 - 2⁵ = 126922967 is a prime.

It is a super-2 number, since 2×126922999² = 32218895350308002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126922909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9065922 + ... + 9065935.

It is an arithmetic number, because the mean of its divisors is an integer number (36263716).

Almost surely, 2^126922999 is an apocalyptic number.

126922999 is a deficient number, since it is larger than the sum of its proper divisors (18131865).

126922999 is an equidigital number, since it uses as much as digits as its factorization.

126922999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18131864.

The product of its digits is 314928, while the sum is 49.

The square root of 126922999 is about 11266.0107846567. The cubic root of 126922999 is about 502.5509617217.

The spelling of 126922999 in words is "one hundred twenty-six million, nine hundred twenty-two thousand, nine hundred ninety-nine".