126992013 has 16 divisors (see below), whose sum is σ = 173482560. Its totient is φ = 82603136.

The previous prime is 126991961. The next prime is 126992051. The reversal of 126992013 is 310299621.

It is a cyclic number.

It is not a de Polignac number, because 126992013 - 2¹⁰ = 126990989 is a prime.

It is a super-2 number, since 2×126992013² = 32253942731584338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126992813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21631 + ... + 26867.

It is an arithmetic number, because the mean of its divisors is an integer number (10842660).

Almost surely, 2^126992013 is an apocalyptic number.

It is an amenable number.

126992013 is a deficient number, since it is larger than the sum of its proper divisors (46490547).

126992013 is a wasteful number, since it uses less digits than its factorization.

126992013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 126992013 is about 11269.0732981909. The cubic root of 126992013 is about 502.6420320767.

The spelling of 126992013 in words is "one hundred twenty-six million, nine hundred ninety-two thousand, thirteen".