131313235 has 8 divisors (see below), whose sum is σ = 158146416. Its totient is φ = 104670240.

The previous prime is 131313229. The next prime is 131313239. The reversal of 131313235 is 532313131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131313235 - 2¹³ = 131305043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131313239) 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 7 ways as a sum of consecutive naturals, for example, 46021 + ... + 48790.

It is an arithmetic number, because the mean of its divisors is an integer number (19768302).

Almost surely, 2^131313235 is an apocalyptic number.

131313235 is a deficient number, since it is larger than the sum of its proper divisors (26833181).

131313235 is an equidigital number, since it uses as much as digits as its factorization.

131313235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95093.

The product of its digits is 810, while the sum is 22.

The square root of 131313235 is about 11459.1987067159. The cubic root of 131313235 is about 508.2797803179.

Adding to 131313235 its reverse (532313131), we get a palindrome (663626366).

The spelling of 131313235 in words is "one hundred thirty-one million, three hundred thirteen thousand, two hundred thirty-five".