131518849 has 8 divisors (see below), whose sum is σ = 163971648. Its totient is φ = 102482160.

The previous prime is 131518841. The next prime is 131518879. The reversal of 131518849 is 948815131.

It is a happy number.

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

It is not a de Polignac number, because 131518849 - 2³ = 131518841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131518841) 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, 853942 + ... + 854095.

It is an arithmetic number, because the mean of its divisors is an integer number (20496456).

Almost surely, 2^131518849 is an apocalyptic number.

It is an amenable number.

131518849 is a deficient number, since it is larger than the sum of its proper divisors (32452799).

131518849 is a wasteful number, since it uses less digits than its factorization.

131518849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708055.

The product of its digits is 34560, while the sum is 40.

The square root of 131518849 is about 11468.1667671865. The cubic root of 131518849 is about 508.5449349517.

It can be divided in two parts, 1315 and 18849, that added together give a square (20164 = 142²).

The spelling of 131518849 in words is "one hundred thirty-one million, five hundred eighteen thousand, eight hundred forty-nine".