131072081 has 8 divisors (see below), whose sum is σ = 150095040. Its totient is φ = 112123728.

The previous prime is 131072069. The next prime is 131072113. The reversal of 131072081 is 180270131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131072081 - 2²⁶ = 63963217 is a prime.

It is a super-2 number, since 2×131072081² = 34359780835341122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131072281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14831 + ... + 21956.

It is an arithmetic number, because the mean of its divisors is an integer number (18761880).

Almost surely, 2^131072081 is an apocalyptic number.

It is an amenable number.

131072081 is a deficient number, since it is larger than the sum of its proper divisors (19022959).

131072081 is an equidigital number, since it uses as much as digits as its factorization.

131072081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37303.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 131072081 is about 11448.6715823278. The cubic root of 131072081 is about 507.9684412681.

The spelling of 131072081 in words is "one hundred thirty-one million, seventy-two thousand, eighty-one".