126573199 has 2 divisors, whose sum is σ = 126573200. Its totient is φ = 126573198.

The previous prime is 126573149. The next prime is 126573233. The reversal of 126573199 is 991375621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126573199 - 2⁹ = 126572687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126573149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63286599 + 63286600.

It is an arithmetic number, because the mean of its divisors is an integer number (63286600).

Almost surely, 2^126573199 is an apocalyptic number.

126573199 is a deficient number, since it is larger than the sum of its proper divisors (1).

126573199 is an equidigital number, since it uses as much as digits as its factorization.

126573199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 43.

The square root of 126573199 is about 11250.4755010622. The cubic root of 126573199 is about 502.0888598432.

The spelling of 126573199 in words is "one hundred twenty-six million, five hundred seventy-three thousand, one hundred ninety-nine".