126992043 has 12 divisors (see below), whose sum is σ = 190227128. Its totient is φ = 84661200.

The previous prime is 126991961. The next prime is 126992051. The reversal of 126992043 is 340299621.

It is not a de Polignac number, because 126992043 - 2¹⁸ = 126729899 is a prime.

It is a super-2 number, since 2×126992043² = 32253957970627698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126991989 and 126992007.

It is not an unprimeable number, because it can be changed into a prime (126999043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261058 + ... + 261543.

Almost surely, 2^126992043 is an apocalyptic number.

126992043 is a deficient number, since it is larger than the sum of its proper divisors (63235085).

126992043 is an frugal number, since it uses more digits than its factorization.

126992043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522616 (or 522604 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 126992043 is about 11269.0746292675. The cubic root of 126992043 is about 502.6420716573.

The spelling of 126992043 in words is "one hundred twenty-six million, nine hundred ninety-two thousand, forty-three".