126899239 has 2 divisors, whose sum is σ = 126899240. Its totient is φ = 126899238.

The previous prime is 126899219. The next prime is 126899251. The reversal of 126899239 is 932998621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126899239 - 2⁵ = 126899207 is a prime.

It is a super-2 number, since 2×126899239² = 32206833717558242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126899192 and 126899201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126899219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63449619 + 63449620.

It is an arithmetic number, because the mean of its divisors is an integer number (63449620).

Almost surely, 2^126899239 is an apocalyptic number.

126899239 is a deficient number, since it is larger than the sum of its proper divisors (1).

126899239 is an equidigital number, since it uses as much as digits as its factorization.

126899239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 49.

The square root of 126899239 is about 11264.9562360446. The cubic root of 126899239 is about 502.5196005654.

The spelling of 126899239 in words is "one hundred twenty-six million, eight hundred ninety-nine thousand, two hundred thirty-nine".