126622431 has 12 divisors (see below), whose sum is σ = 196968408. Its totient is φ = 77921424.

The previous prime is 126622421. The next prime is 126622453. The reversal of 126622431 is 134226621.

126622431 is a `hidden beast` number, since 1 + 2 + 6 + 622 + 4 + 31 = 666.

It is not a de Polignac number, because 126622431 - 2⁶ = 126622367 is a prime.

It is a super-2 number, since 2×126622431² = 32066480064699522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 126622395 and 126622404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126622411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 541005 + ... + 541238.

It is an arithmetic number, because the mean of its divisors is an integer number (16414034).

Almost surely, 2^126622431 is an apocalyptic number.

126622431 is a deficient number, since it is larger than the sum of its proper divisors (70345977).

126622431 is a wasteful number, since it uses less digits than its factorization.

126622431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082262 (or 1082259 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 126622431 is about 11252.6632847517. The cubic root of 126622431 is about 502.1539490163.

The spelling of 126622431 in words is "one hundred twenty-six million, six hundred twenty-two thousand, four hundred thirty-one".