126427081 has 12 divisors (see below), whose sum is σ = 139583664. Its totient is φ = 113564000.

The previous prime is 126427061. The next prime is 126427087. The reversal of 126427081 is 180724621.

It is not a de Polignac number, because 126427081 - 2²¹ = 124329929 is a prime.

It is a super-2 number, since 2×126427081² = 31967613620361122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126427087) 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, 86406 + ... + 87856.

It is an arithmetic number, because the mean of its divisors is an integer number (11631972).

Almost surely, 2^126427081 is an apocalyptic number.

126427081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126427081 is a deficient number, since it is larger than the sum of its proper divisors (13156583).

126427081 is an equidigital number, since it uses as much as digits as its factorization.

126427081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 126427081 is about 11243.9797669686. The cubic root of 126427081 is about 501.8955791444.

The spelling of 126427081 in words is "one hundred twenty-six million, four hundred twenty-seven thousand, eighty-one".