126172426 has 16 divisors (see below), whose sum is σ = 199533600. Its totient is φ = 59671728.

The previous prime is 126172421. The next prime is 126172439. The reversal of 126172426 is 624271621.

It is not an unprimeable number, because it can be changed into a prime (126172421) 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 7 ways as a sum of consecutive naturals, for example, 25836 + ... + 30328.

It is an arithmetic number, because the mean of its divisors is an integer number (12470850).

Almost surely, 2^126172426 is an apocalyptic number.

126172426 is a deficient number, since it is larger than the sum of its proper divisors (73361174).

126172426 is a wasteful number, since it uses less digits than its factorization.

126172426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253.

The product of its digits is 8064, while the sum is 31.

The square root of 126172426 is about 11232.6499989985. The cubic root of 126172426 is about 501.5583725705.

The spelling of 126172426 in words is "one hundred twenty-six million, one hundred seventy-two thousand, four hundred twenty-six".