126160581 has 16 divisors (see below), whose sum is σ = 174214656. Its totient is φ = 81154416.

The previous prime is 126160579. The next prime is 126160603. The reversal of 126160581 is 185061621.

It is not a de Polignac number, because 126160581 - 2¹ = 126160579 is a prime.

It is a super-2 number, since 2×126160581² = 31832984396515122, 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 (126160501) 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, 4816 + ... + 16598.

It is an arithmetic number, because the mean of its divisors is an integer number (10888416).

Almost surely, 2^126160581 is an apocalyptic number.

It is an amenable number.

126160581 is a deficient number, since it is larger than the sum of its proper divisors (48054075).

126160581 is a wasteful number, since it uses less digits than its factorization.

126160581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11912.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 126160581 is about 11232.1227290303. The cubic root of 126160581 is about 501.5426767352.

The spelling of 126160581 in words is "one hundred twenty-six million, one hundred sixty thousand, five hundred eighty-one".