131440849 has 8 divisors (see below), whose sum is σ = 133848000. Its totient is φ = 129039792.

The previous prime is 131440817. The next prime is 131440867. The reversal of 131440849 is 948044131.

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 131440849 - 2⁵ = 131440817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131440249) 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, 83532 + ... + 85090.

It is an arithmetic number, because the mean of its divisors is an integer number (16731000).

Almost surely, 2^131440849 is an apocalyptic number.

It is an amenable number.

131440849 is a deficient number, since it is larger than the sum of its proper divisors (2407151).

131440849 is a wasteful number, since it uses less digits than its factorization.

131440849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 131440849 is about 11464.7655449207. The cubic root of 131440849 is about 508.4443806725. Note that the first 3 decimals are identical.

The spelling of 131440849 in words is "one hundred thirty-one million, four hundred forty thousand, eight hundred forty-nine".