126920456 has 32 divisors (see below), whose sum is σ = 269774400. Its totient is φ = 55494720.

The previous prime is 126920447. The next prime is 126920473. The reversal of 126920456 is 654029621.

It is a happy number.

It is a super-2 number, since 2×126920456² = 32217604302495872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30140 + ... + 34091.

It is an arithmetic number, because the mean of its divisors is an integer number (8430450).

Almost surely, 2^126920456 is an apocalyptic number.

It is an amenable number.

126920456 is an abundant number, since it is smaller than the sum of its proper divisors (142853944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126920456 is a wasteful number, since it uses less digits than its factorization.

126920456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64269 (or 64265 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 126920456 is about 11265.8979224916. The cubic root of 126920456 is about 502.5476053675.

The spelling of 126920456 in words is "one hundred twenty-six million, nine hundred twenty thousand, four hundred fifty-six".