131849919 has 6 divisors (see below), whose sum is σ = 190449896. Its totient is φ = 87899940.

The previous prime is 131849867. The next prime is 131849929. The reversal of 131849919 is 919948131.

It is not a de Polignac number, because 131849919 - 2¹¹ = 131847871 is a prime.

It is a super-2 number, since 2×131849919² = 34768802280613122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131849929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7324987 + ... + 7325004.

Almost surely, 2^131849919 is an apocalyptic number.

131849919 is a deficient number, since it is larger than the sum of its proper divisors (58599977).

131849919 is a wasteful number, since it uses less digits than its factorization.

131849919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14649997 (or 14649994 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 131849919 is about 11482.5919983251. The cubic root of 131849919 is about 508.9712943594.

The spelling of 131849919 in words is "one hundred thirty-one million, eight hundred forty-nine thousand, nine hundred nineteen".