126992127 has 4 divisors (see below), whose sum is σ = 169322840. Its totient is φ = 84661416.

The previous prime is 126992123. The next prime is 126992137. The reversal of 126992127 is 721299621.

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

It is not a de Polignac number, because 126992127 - 2² = 126992123 is a prime.

It is a super-2 number, since 2×126992127² = 32254000639968258, 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 (126992123) 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, 21165352 + ... + 21165357.

It is an arithmetic number, because the mean of its divisors is an integer number (42330710).

Almost surely, 2^126992127 is an apocalyptic number.

126992127 is a deficient number, since it is larger than the sum of its proper divisors (42330713).

126992127 is an equidigital number, since it uses as much as digits as its factorization.

126992127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42330712.

The product of its digits is 27216, while the sum is 39.

The square root of 126992127 is about 11269.0783562810. The cubic root of 126992127 is about 502.6421824829.

The spelling of 126992127 in words is "one hundred twenty-six million, nine hundred ninety-two thousand, one hundred twenty-seven".