131353743 has 4 divisors (see below), whose sum is σ = 175138328. Its totient is φ = 87569160.

The previous prime is 131353741. The next prime is 131353751. The reversal of 131353743 is 347353131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347353131 = 3 ⋅115784377.

It is not a de Polignac number, because 131353743 - 2¹ = 131353741 is a prime.

It is a super-2 number, since 2×131353743² = 34507611600220098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131353743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131353741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21892288 + ... + 21892293.

It is an arithmetic number, because the mean of its divisors is an integer number (43784582).

Almost surely, 2^131353743 is an apocalyptic number.

131353743 is a deficient number, since it is larger than the sum of its proper divisors (43784585).

131353743 is an equidigital number, since it uses as much as digits as its factorization.

131353743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43784584.

The product of its digits is 11340, while the sum is 30.

The square root of 131353743 is about 11460.9660587579. The cubic root of 131353743 is about 508.3320402965.

The spelling of 131353743 in words is "one hundred thirty-one million, three hundred fifty-three thousand, seven hundred forty-three".