126405626 has 16 divisors (see below), whose sum is σ = 191102760. Its totient is φ = 62707200.

The previous prime is 126405599. The next prime is 126405637. The reversal of 126405626 is 626504621.

It can be written as a sum of positive squares in 4 ways, for example, as 106110601 + 20295025 = 10301^2 + 4505^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126405592 and 126405601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221870 + ... + 222438.

Almost surely, 2^126405626 is an apocalyptic number.

126405626 is a deficient number, since it is larger than the sum of its proper divisors (64697134).

126405626 is a wasteful number, since it uses less digits than its factorization.

126405626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 126405626 is about 11243.0256603816. The cubic root of 126405626 is about 501.8671865491.

The spelling of 126405626 in words is "one hundred twenty-six million, four hundred five thousand, six hundred twenty-six".