131546501 has 4 divisors (see below), whose sum is σ = 131647404. Its totient is φ = 131445600.

The previous prime is 131546489. The next prime is 131546521. The reversal of 131546501 is 105645131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105645131 = 67 ⋅1576793.

It can be written as a sum of positive squares in 2 ways, for example, as 118048225 + 13498276 = 10865^2 + 3674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131546501 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 (131546521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48470 + ... + 51111.

It is an arithmetic number, because the mean of its divisors is an integer number (32911851).

Almost surely, 2^131546501 is an apocalyptic number.

It is an amenable number.

131546501 is a deficient number, since it is larger than the sum of its proper divisors (100903).

131546501 is an equidigital number, since it uses as much as digits as its factorization.

131546501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100902.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 131546501 is about 11469.3723019178. The cubic root of 131546501 is about 508.5805731871.

The spelling of 131546501 in words is "one hundred thirty-one million, five hundred forty-six thousand, five hundred one".