131498369 has 4 divisors (see below), whose sum is σ = 131676096. Its totient is φ = 131320644.

The previous prime is 131498359. The next prime is 131498377. The reversal of 131498369 is 963894131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 963894131 = 5147 ⋅187273.

It is a cyclic number.

It is not a de Polignac number, because 131498369 - 2⁸ = 131498113 is a prime.

It is a super-2 number, since 2×131498369² = 34583642099320322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131498359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87749 + ... + 89234.

It is an arithmetic number, because the mean of its divisors is an integer number (32919024).

Almost surely, 2^131498369 is an apocalyptic number.

It is an amenable number.

131498369 is a deficient number, since it is larger than the sum of its proper divisors (177727).

131498369 is an equidigital number, since it uses as much as digits as its factorization.

131498369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177726.

The product of its digits is 139968, while the sum is 44.

The square root of 131498369 is about 11467.2738259797. The cubic root of 131498369 is about 508.5185368574.

The spelling of 131498369 in words is "one hundred thirty-one million, four hundred ninety-eight thousand, three hundred sixty-nine".