131190609 has 8 divisors (see below), whose sum is σ = 190822752. Its totient is φ = 79509440.

The previous prime is 131190607. The next prime is 131190679. The reversal of 131190609 is 906091131.

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 131190609 - 2¹ = 131190607 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131190607) 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, 1987704 + ... + 1987769.

It is an arithmetic number, because the mean of its divisors is an integer number (23852844).

Almost surely, 2^131190609 is an apocalyptic number.

It is an amenable number.

131190609 is a deficient number, since it is larger than the sum of its proper divisors (59632143).

131190609 is a wasteful number, since it uses less digits than its factorization.

131190609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975487.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 131190609 is about 11453.8469083535. The cubic root of 131190609 is about 508.1215131333.

The spelling of 131190609 in words is "one hundred thirty-one million, one hundred ninety thousand, six hundred nine".