131514541 has 4 divisors (see below), whose sum is σ = 131800284. Its totient is φ = 131228800.

The previous prime is 131514521. The next prime is 131514553. The reversal of 131514541 is 145415131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145415131 = 23 ⋅6322397.

It can be written as a sum of positive squares in 2 ways, for example, as 20738916 + 110775625 = 4554^2 + 10525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131514541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131514521) 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, 142180 + ... + 143101.

It is an arithmetic number, because the mean of its divisors is an integer number (32950071).

Almost surely, 2^131514541 is an apocalyptic number.

It is an amenable number.

131514541 is a deficient number, since it is larger than the sum of its proper divisors (285743).

131514541 is an equidigital number, since it uses as much as digits as its factorization.

131514541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285742.

The product of its digits is 1200, while the sum is 25.

The square root of 131514541 is about 11467.9789413828. The cubic root of 131514541 is about 508.5393822989.

Adding to 131514541 its reverse (145415131), we get a palindrome (276929672).

The spelling of 131514541 in words is "one hundred thirty-one million, five hundred fourteen thousand, five hundred forty-one".