131612469 has 8 divisors (see below), whose sum is σ = 181534560. Its totient is φ = 84716016.

The previous prime is 131612423. The next prime is 131612471. The reversal of 131612469 is 964216131.

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

It is not a de Polignac number, because 131612469 - 2⁸ = 131612213 is a prime.

It is a super-2 number, since 2×131612469² = 34643683992551922, 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 (131612479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756307 + ... + 756480.

It is an arithmetic number, because the mean of its divisors is an integer number (22691820).

Almost surely, 2^131612469 is an apocalyptic number.

It is an amenable number.

131612469 is a deficient number, since it is larger than the sum of its proper divisors (49922091).

131612469 is a wasteful number, since it uses less digits than its factorization.

131612469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512819.

The product of its digits is 7776, while the sum is 33.

The square root of 131612469 is about 11472.2477745209. The cubic root of 131612469 is about 508.6655733869.

The spelling of 131612469 in words is "one hundred thirty-one million, six hundred twelve thousand, four hundred sixty-nine".