131252443 has 4 divisors (see below), whose sum is σ = 150002800. Its totient is φ = 112502088.

The previous prime is 131252441. The next prime is 131252447. The reversal of 131252443 is 344252131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344252131 = 1759 ⋅195709.

It is a cyclic number.

It is not a de Polignac number, because 131252443 - 2¹ = 131252441 is a prime.

It is a super-3 number, since 3×131252443³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131252441) 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, 9375168 + ... + 9375181.

It is an arithmetic number, because the mean of its divisors is an integer number (37500700).

Almost surely, 2^131252443 is an apocalyptic number.

131252443 is a deficient number, since it is larger than the sum of its proper divisors (18750357).

131252443 is an equidigital number, since it uses as much as digits as its factorization.

131252443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18750356.

The product of its digits is 2880, while the sum is 25.

The square root of 131252443 is about 11456.5458581546. The cubic root of 131252443 is about 508.2013314752.

The spelling of 131252443 in words is "one hundred thirty-one million, two hundred fifty-two thousand, four hundred forty-three".