2115254393 has 12 divisors (see below), whose sum is σ = 2605344372. Its totient is φ = 1706423040.

The previous prime is 2115254389. The next prime is 2115254399. The reversal of 2115254393 is 3934525112.

It can be written as a sum of positive squares in 2 ways, for example, as 1905497104 + 209757289 = 43652^2 + 14483^2 .

It is not a de Polignac number, because 2115254393 - 2² = 2115254389 is a prime.

It is a super-2 number, since 2×2115254393² = 8948602294211596898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115254399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1268828 + ... + 1270493.

It is an arithmetic number, because the mean of its divisors is an integer number (217112031).

Almost surely, 2^2115254393 is an apocalyptic number.

It is an amenable number.

2115254393 is a deficient number, since it is larger than the sum of its proper divisors (490089979).

2115254393 is a wasteful number, since it uses less digits than its factorization.

2115254393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539352 (or 2539345 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 2115254393 is about 45991.8948620298. The cubic root of 2115254393 is about 1283.6723948919.

The spelling of 2115254393 in words is "two billion, one hundred fifteen million, two hundred fifty-four thousand, three hundred ninety-three".