126626739 has 16 divisors (see below), whose sum is σ = 170352000. Its totient is φ = 83664000.

The previous prime is 126626711. The next prime is 126626743. The reversal of 126626739 is 937626621.

It is not a de Polignac number, because 126626739 - 2¹⁷ = 126495667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126626739.

It is not an unprimeable number, because it can be changed into a prime (126625739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253512 + ... + 254010.

It is an arithmetic number, because the mean of its divisors is an integer number (10647000).

Almost surely, 2^126626739 is an apocalyptic number.

126626739 is a deficient number, since it is larger than the sum of its proper divisors (43725261).

126626739 is a wasteful number, since it uses less digits than its factorization.

126626739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090.

The product of its digits is 163296, while the sum is 42.

The square root of 126626739 is about 11252.8547044739. The cubic root of 126626739 is about 502.1596437805.

The spelling of 126626739 in words is "one hundred twenty-six million, six hundred twenty-six thousand, seven hundred thirty-nine".