131665070 has 8 divisors (see below), whose sum is σ = 236997144. Its totient is φ = 52666024.

The previous prime is 131665069. The next prime is 131665073. The reversal of 131665070 is 70566131.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131665073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6583244 + ... + 6583263.

It is an arithmetic number, because the mean of its divisors is an integer number (29624643).

Almost surely, 2^131665070 is an apocalyptic number.

131665070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131665070 is a deficient number, since it is larger than the sum of its proper divisors (105332074).

131665070 is a wasteful number, since it uses less digits than its factorization.

131665070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13166514.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 131665070 is about 11474.5400779290. The cubic root of 131665070 is about 508.7333297687.

The spelling of 131665070 in words is "one hundred thirty-one million, six hundred sixty-five thousand, seventy".