126032181 has 16 divisors (see below), whose sum is σ = 183618048. Its totient is φ = 76258800.

The previous prime is 126032167. The next prime is 126032213. The reversal of 126032181 is 181230621.

It is not a de Polignac number, because 126032181 - 2⁶ = 126032117 is a prime.

It is a super-2 number, since 2×126032181² = 31768221295233522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126032141) 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 15 ways as a sum of consecutive naturals, for example, 20040 + ... + 25566.

It is an arithmetic number, because the mean of its divisors is an integer number (11476128).

Almost surely, 2^126032181 is an apocalyptic number.

126032181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126032181 is a deficient number, since it is larger than the sum of its proper divisors (57585867).

126032181 is a wasteful number, since it uses less digits than its factorization.

126032181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 126032181 is about 11226.4055244767. The cubic root of 126032181 is about 501.3724705355.

The spelling of 126032181 in words is "one hundred twenty-six million, thirty-two thousand, one hundred eighty-one".