131849235 has 96 divisors (see below), whose sum is σ = 277885440. Its totient is φ = 58095360.

The previous prime is 131849219. The next prime is 131849239. The reversal of 131849235 is 532948131.

131849235 is a `hidden beast` number, since 131 + 8 + 492 + 35 = 666.

It is not a de Polignac number, because 131849235 - 2⁴ = 131849219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131849235.

It is not an unprimeable number, because it can be changed into a prime (131849239) 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 95 ways as a sum of consecutive naturals, for example, 1588504 + ... + 1588586.

It is an arithmetic number, because the mean of its divisors is an integer number (2894640).

Almost surely, 2^131849235 is an apocalyptic number.

131849235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131849235 is an abundant number, since it is smaller than the sum of its proper divisors (146036205).

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

131849235 is an equidigital number, since it uses as much as digits as its factorization.

131849235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 139 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 131849235 is about 11482.5622140705. The cubic root of 131849235 is about 508.9704142249.

The spelling of 131849235 in words is "one hundred thirty-one million, eight hundred forty-nine thousand, two hundred thirty-five".