5115123215 has 8 divisors (see below), whose sum is σ = 6144165888. Its totient is φ = 4088086560.

The previous prime is 5115123199. The next prime is 5115123257. The reversal of 5115123215 is 5123215115.

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

It is not a de Polignac number, because 5115123215 - 2⁴ = 5115123199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495887 + ... + 506096.

It is an arithmetic number, because the mean of its divisors is an integer number (768020736).

Almost surely, 2^5115123215 is an apocalyptic number.

5115123215 is a deficient number, since it is larger than the sum of its proper divisors (1029042673).

5115123215 is a wasteful number, since it uses less digits than its factorization.

5115123215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003009.

The product of its digits is 1500, while the sum is 26.

The square root of 5115123215 is about 71520.0895902683. The cubic root of 5115123215 is about 1723.0003534621. Note that the first 3 decimals are identical.

The spelling of 5115123215 in words is "five billion, one hundred fifteen million, one hundred twenty-three thousand, two hundred fifteen".