126273937 has 4 divisors (see below), whose sum is σ = 127524276. Its totient is φ = 125023600.

The previous prime is 126273919. The next prime is 126273989. The reversal of 126273937 is 739372621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116294656 + 9979281 = 10784^2 + 3159^2 .

It is a cyclic number.

It is not a de Polignac number, because 126273937 - 2¹⁵ = 126241169 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 126273937.

It is not an unprimeable number, because it can be changed into a prime (126273737) 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 in 3 ways as a sum of consecutive naturals, for example, 625018 + ... + 625219.

It is an arithmetic number, because the mean of its divisors is an integer number (31881069).

Almost surely, 2^126273937 is an apocalyptic number.

It is an amenable number.

126273937 is a deficient number, since it is larger than the sum of its proper divisors (1250339).

126273937 is a wasteful number, since it uses less digits than its factorization.

126273937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250338.

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

The square root of 126273937 is about 11237.1676591568. The cubic root of 126273937 is about 501.6928447517.

The spelling of 126273937 in words is "one hundred twenty-six million, two hundred seventy-three thousand, nine hundred thirty-seven".