126992051 has 2 divisors, whose sum is σ = 126992052. Its totient is φ = 126992050.

The previous prime is 126991961. The next prime is 126992059. The reversal of 126992051 is 150299621.

It is a strong prime.

It is an emirp because it is prime and its reverse (150299621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126992051 is a prime.

It is a super-2 number, since 2×126992051² = 32253962034373202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126992059) 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 as a sum of consecutive naturals, namely, 63496025 + 63496026.

It is an arithmetic number, because the mean of its divisors is an integer number (63496026).

Almost surely, 2^126992051 is an apocalyptic number.

126992051 is a deficient number, since it is larger than the sum of its proper divisors (1).

126992051 is an equidigital number, since it uses as much as digits as its factorization.

126992051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 126992051 is about 11269.0749842212. The cubic root of 126992051 is about 502.6420822121.

The spelling of 126992051 in words is "one hundred twenty-six million, nine hundred ninety-two thousand, fifty-one".