126723937 has 4 divisors (see below), whose sum is σ = 127635760. Its totient is φ = 125812116.

The previous prime is 126723931. The next prime is 126723941. The reversal of 126723937 is 739327621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 739327621 = 41 ⋅18032381.

It is a cyclic number.

It is not a de Polignac number, because 126723937 - 2³ = 126723929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126723937.

It is not an unprimeable number, because it can be changed into a prime (126723931) 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, 455703 + ... + 455980.

It is an arithmetic number, because the mean of its divisors is an integer number (31908940).

Almost surely, 2^126723937 is an apocalyptic number.

It is an amenable number.

126723937 is a deficient number, since it is larger than the sum of its proper divisors (911823).

126723937 is an equidigital number, since it uses as much as digits as its factorization.

126723937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911822.

The product of its digits is 95256, while the sum is 40.

The square root of 126723937 is about 11257.1726912223. The cubic root of 126723937 is about 502.2880959286.

The spelling of 126723937 in words is "one hundred twenty-six million, seven hundred twenty-three thousand, nine hundred thirty-seven".