126873199 has 4 divisors (see below), whose sum is σ = 127125936. Its totient is φ = 126620464.

The previous prime is 126873191. The next prime is 126873239. The reversal of 126873199 is 991378621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991378621 = 53 ⋅18705257.

It is a cyclic number.

It is not a de Polignac number, because 126873199 - 2³ = 126873191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126873191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125614 + ... + 126619.

It is an arithmetic number, because the mean of its divisors is an integer number (31781484).

Almost surely, 2^126873199 is an apocalyptic number.

126873199 is a deficient number, since it is larger than the sum of its proper divisors (252737).

126873199 is an equidigital number, since it uses as much as digits as its factorization.

126873199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252736.

The product of its digits is 163296, while the sum is 46.

The square root of 126873199 is about 11263.8003799783. The cubic root of 126873199 is about 502.4852255089.

The spelling of 126873199 in words is "one hundred twenty-six million, eight hundred seventy-three thousand, one hundred ninety-nine".