131313526 has 8 divisors (see below), whose sum is σ = 198275184. Its totient is φ = 65221800.

The previous prime is 131313521. The next prime is 131313587. The reversal of 131313526 is 625313131.

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

It is a super-2 number, since 2×131313526² = 34486484221105352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131313526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217105 + ... + 217708.

It is an arithmetic number, because the mean of its divisors is an integer number (24784398).

Almost surely, 2^131313526 is an apocalyptic number.

131313526 is a deficient number, since it is larger than the sum of its proper divisors (66961658).

131313526 is a wasteful number, since it uses less digits than its factorization.

131313526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434966.

The product of its digits is 1620, while the sum is 25.

The square root of 131313526 is about 11459.2114039318. The cubic root of 131313526 is about 508.2801557797.

Adding to 131313526 its reverse (625313131), we get a palindrome (756626657).

The spelling of 131313526 in words is "one hundred thirty-one million, three hundred thirteen thousand, five hundred twenty-six".