131939069 has 8 divisors (see below), whose sum is σ = 136578048. Its totient is φ = 127324080.

The previous prime is 131939051. The next prime is 131939081. The reversal of 131939069 is 960939131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131939069 is a prime.

It is a super-2 number, since 2×131939069² = 34815835857173522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131939039) 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, 5579 + ... + 17175.

It is an arithmetic number, because the mean of its divisors is an integer number (17072256).

Almost surely, 2^131939069 is an apocalyptic number.

It is an amenable number.

131939069 is a deficient number, since it is larger than the sum of its proper divisors (4638979).

131939069 is a wasteful number, since it uses less digits than its factorization.

131939069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11995.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 131939069 is about 11486.4733055886. The cubic root of 131939069 is about 509.0859817463.

The spelling of 131939069 in words is "one hundred thirty-one million, nine hundred thirty-nine thousand, sixty-nine".