131849139 has 8 divisors (see below), whose sum is σ = 177774480. Its totient is φ = 86911616.

The previous prime is 131849117. The next prime is 131849143. The reversal of 131849139 is 931948131.

It is a happy number.

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 131849139 - 2⁸ = 131848883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131849097 and 131849106.

It is not an unprimeable number, because it can be changed into a prime (131849239) 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, 246642 + ... + 247175.

It is an arithmetic number, because the mean of its divisors is an integer number (22221810).

Almost surely, 2^131849139 is an apocalyptic number.

131849139 is a deficient number, since it is larger than the sum of its proper divisors (45925341).

131849139 is an equidigital number, since it uses as much as digits as its factorization.

131849139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493909.

The product of its digits is 23328, while the sum is 39.

The square root of 131849139 is about 11482.5580338181. The cubic root of 131849139 is about 508.9702906970.

The spelling of 131849139 in words is "one hundred thirty-one million, eight hundred forty-nine thousand, one hundred thirty-nine".