131849690 has 48 divisors (see below), whose sum is σ = 281341512. Its totient is φ = 44343936.

The previous prime is 131849677. The next prime is 131849713. The reversal of 131849690 is 96948131.

It can be written as a sum of positive squares in 4 ways, for example, as 131629729 + 219961 = 11473^2 + 469^2 .

It is a super-2 number, since 2×131849690² = 34768681506192200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23432 + ... + 28508.

Almost surely, 2^131849690 is an apocalyptic number.

131849690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131849690 is an abundant number, since it is smaller than the sum of its proper divisors (149491822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131849690 is a wasteful number, since it uses less digits than its factorization.

131849690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5151 (or 5144 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 131849690 is about 11482.5820267046. The cubic root of 131849690 is about 508.9709996948.

The spelling of 131849690 in words is "one hundred thirty-one million, eight hundred forty-nine thousand, six hundred ninety".