131513223 has 8 divisors (see below), whose sum is σ = 177753328. Its totient is φ = 86474304.

The previous prime is 131513197. The next prime is 131513233. The reversal of 131513223 is 322315131.

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

It is not a de Polignac number, because 131513223 - 2¹⁴ = 131496839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131513223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131513233) 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, 300040 + ... + 300477.

It is an arithmetic number, because the mean of its divisors is an integer number (22219166).

Almost surely, 2^131513223 is an apocalyptic number.

131513223 is a deficient number, since it is larger than the sum of its proper divisors (46240105).

131513223 is an equidigital number, since it uses as much as digits as its factorization.

131513223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600593.

The product of its digits is 540, while the sum is 21.

The square root of 131513223 is about 11467.9214768850. The cubic root of 131513223 is about 508.5376834826.

Adding to 131513223 its reverse (322315131), we get a palindrome (453828354).

The spelling of 131513223 in words is "one hundred thirty-one million, five hundred thirteen thousand, two hundred twenty-three".