131982737 has 4 divisors (see below), whose sum is σ = 135549876. Its totient is φ = 128415600.

The previous prime is 131982709. The next prime is 131982743. The reversal of 131982737 is 737289131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737289131 = 241 ⋅3059291.

It can be written as a sum of positive squares in 2 ways, for example, as 121198081 + 10784656 = 11009^2 + 3284^2 .

It is a cyclic number.

It is not a de Polignac number, because 131982737 - 2⁸ = 131982481 is a prime.

It is a super-2 number, since 2×131982737² = 34838885732022338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131982694 and 131982703.

It is not an unprimeable number, because it can be changed into a prime (131982637) 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, 1783514 + ... + 1783587.

It is an arithmetic number, because the mean of its divisors is an integer number (33887469).

Almost surely, 2^131982737 is an apocalyptic number.

It is an amenable number.

131982737 is a deficient number, since it is larger than the sum of its proper divisors (3567139).

131982737 is an equidigital number, since it uses as much as digits as its factorization.

131982737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567138.

The product of its digits is 63504, while the sum is 41.

The square root of 131982737 is about 11488.3739928677. The cubic root of 131982737 is about 509.1421397762.

The spelling of 131982737 in words is "one hundred thirty-one million, nine hundred eighty-two thousand, seven hundred thirty-seven".