131411817 has 24 divisors (see below), whose sum is σ = 193673480. Its totient is φ = 85847040.

The previous prime is 131411801. The next prime is 131411831. The reversal of 131411817 is 718114131.

It can be written as a sum of positive squares in 4 ways, for example, as 24413481 + 106998336 = 4941^2 + 10344^2 .

It is not a de Polignac number, because 131411817 - 2⁴ = 131411801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131411837) 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 23 ways as a sum of consecutive naturals, for example, 94467 + ... + 95847.

Almost surely, 2^131411817 is an apocalyptic number.

It is an amenable number.

131411817 is a deficient number, since it is larger than the sum of its proper divisors (62261663).

131411817 is a wasteful number, since it uses less digits than its factorization.

131411817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593 (or 1590 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 131411817 is about 11463.4993348454. The cubic root of 131411817 is about 508.4069436953.

Adding to 131411817 its reverse (718114131), we get a palindrome (849525948).

It can be divided in two parts, 1314 and 11817, that added together give a palindrome (13131).

The spelling of 131411817 in words is "one hundred thirty-one million, four hundred eleven thousand, eight hundred seventeen".