2115155243 has 8 divisors (see below), whose sum is σ = 2142758400. Its totient is φ = 2087572968.

The previous prime is 2115155219. The next prime is 2115155261. The reversal of 2115155243 is 3425515112.

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

It is a cyclic number.

It is not a de Polignac number, because 2115155243 - 2²⁰ = 2114106667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115157243) 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, 385880 + ... + 391322.

It is an arithmetic number, because the mean of its divisors is an integer number (267844800).

Almost surely, 2^2115155243 is an apocalyptic number.

2115155243 is a deficient number, since it is larger than the sum of its proper divisors (27603157).

2115155243 is an equidigital number, since it uses as much as digits as its factorization.

2115155243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10441.

The product of its digits is 6000, while the sum is 29.

The square root of 2115155243 is about 45990.8169420809. The cubic root of 2115155243 is about 1283.6523377131.

The spelling of 2115155243 in words is "two billion, one hundred fifteen million, one hundred fifty-five thousand, two hundred forty-three".