131513219 has 4 divisors (see below), whose sum is σ = 131653920. Its totient is φ = 131372520.

The previous prime is 131513197. The next prime is 131513233. The reversal of 131513219 is 912315131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131513219 is a prime.

It is a super-2 number, since 2×131513219² = 34591453543483922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131513519) 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 3 ways as a sum of consecutive naturals, for example, 68939 + ... + 70820.

It is an arithmetic number, because the mean of its divisors is an integer number (32913480).

Almost surely, 2^131513219 is an apocalyptic number.

131513219 is a deficient number, since it is larger than the sum of its proper divisors (140701).

131513219 is an equidigital number, since it uses as much as digits as its factorization.

131513219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140700.

The product of its digits is 810, while the sum is 26.

The square root of 131513219 is about 11467.9213024855. The cubic root of 131513219 is about 508.5376783269.

The spelling of 131513219 in words is "one hundred thirty-one million, five hundred thirteen thousand, two hundred nineteen".