126167939 has 2 divisors, whose sum is σ = 126167940. Its totient is φ = 126167938.

The previous prime is 126167929. The next prime is 126167941. The reversal of 126167939 is 939761621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126167939 is a prime.

Together with 126167941, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126167939.

It is not a weakly prime, because it can be changed into another prime (126167929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63083969 + 63083970.

It is an arithmetic number, because the mean of its divisors is an integer number (63083970).

Almost surely, 2^126167939 is an apocalyptic number.

126167939 is a deficient number, since it is larger than the sum of its proper divisors (1).

126167939 is an equidigital number, since it uses as much as digits as its factorization.

126167939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 44.

The square root of 126167939 is about 11232.4502669720. The cubic root of 126167939 is about 501.5524269526.

The spelling of 126167939 in words is "one hundred twenty-six million, one hundred sixty-seven thousand, nine hundred thirty-nine".