115321143 has 8 divisors (see below), whose sum is σ = 175727488. Its totient is φ = 65897784.

The previous prime is 115321109. The next prime is 115321153. The reversal of 115321143 is 341123511.

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

It is not a de Polignac number, because 115321143 - 2⁶ = 115321079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5491483 = 115321143 / (1 + 1 + 5 + 3 + 2 + 1 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115321153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745721 + ... + 2745762.

It is an arithmetic number, because the mean of its divisors is an integer number (21965936).

Almost surely, 2^115321143 is an apocalyptic number.

115321143 is a deficient number, since it is larger than the sum of its proper divisors (60406345).

115321143 is an equidigital number, since it uses as much as digits as its factorization.

115321143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491493.

The product of its digits is 360, while the sum is 21.

The square root of 115321143 is about 10738.7682254530. The cubic root of 115321143 is about 486.7466591994.

Adding to 115321143 its reverse (341123511), we get a palindrome (456444654).

The spelling of 115321143 in words is "one hundred fifteen million, three hundred twenty-one thousand, one hundred forty-three".