115564143 has 8 divisors (see below), whose sum is σ = 154369408. Its totient is φ = 76900824.

The previous prime is 115564133. The next prime is 115564157. The reversal of 115564143 is 341465511.

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 115564143 - 2²⁴ = 98786927 is a prime.

It is a super-2 number, since 2×115564143² = 26710142294648898, 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 115564143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115564133) 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, 33571 + ... + 36852.

It is an arithmetic number, because the mean of its divisors is an integer number (19296176).

Almost surely, 2^115564143 is an apocalyptic number.

115564143 is a deficient number, since it is larger than the sum of its proper divisors (38805265).

115564143 is an equidigital number, since it uses as much as digits as its factorization.

115564143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70973.

The product of its digits is 7200, while the sum is 30.

The square root of 115564143 is about 10750.0764183330. The cubic root of 115564143 is about 487.0883035685.

The spelling of 115564143 in words is "one hundred fifteen million, five hundred sixty-four thousand, one hundred forty-three".