131411437 has 8 divisors (see below), whose sum is σ = 136132920. Its totient is φ = 126762240.

The previous prime is 131411393. The next prime is 131411473. The reversal of 131411437 is 734114131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 972196 + 130439241 = 986^2 + 11421^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 131411437 - 2¹¹ = 131409389 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 (131411237) 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, 14358 + ... + 21655.

It is an arithmetic number, because the mean of its divisors is an integer number (17016615).

Almost surely, 2^131411437 is an apocalyptic number.

It is an amenable number.

131411437 is a deficient number, since it is larger than the sum of its proper divisors (4721483).

131411437 is an equidigital number, since it uses as much as digits as its factorization.

131411437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36143.

The product of its digits is 1008, while the sum is 25.

The square root of 131411437 is about 11463.4827604878. The cubic root of 131411437 is about 508.4064536460.

Adding to 131411437 its reverse (734114131), we get a palindrome (865525568).

The spelling of 131411437 in words is "one hundred thirty-one million, four hundred eleven thousand, four hundred thirty-seven".