131897841 has 8 divisors (see below), whose sum is σ = 176317440. Its totient is φ = 87705072.

The previous prime is 131897809. The next prime is 131897851. The reversal of 131897841 is 148798131.

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

It is not a de Polignac number, because 131897841 - 2⁵ = 131897809 is a prime.

It is a super-2 number, since 2×131897841² = 34794080920922562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131897793 and 131897802.

It is not an unprimeable number, because it can be changed into a prime (131897851) 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 7 ways as a sum of consecutive naturals, for example, 55345 + ... + 57678.

It is an arithmetic number, because the mean of its divisors is an integer number (22039680).

Almost surely, 2^131897841 is an apocalyptic number.

It is an amenable number.

131897841 is a deficient number, since it is larger than the sum of its proper divisors (44419599).

131897841 is a wasteful number, since it uses less digits than its factorization.

131897841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113415.

The product of its digits is 48384, while the sum is 42.

The square root of 131897841 is about 11484.6785327235. The cubic root of 131897841 is about 509.0329502383.

The spelling of 131897841 in words is "one hundred thirty-one million, eight hundred ninety-seven thousand, eight hundred forty-one".