2115238919 has 4 divisors (see below), whose sum is σ = 2125263960. Its totient is φ = 2105213880.

The previous prime is 2115238837. The next prime is 2115238921. The reversal of 2115238919 is 9198325112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115238919 - 2²⁸ = 1846803463 is a prime.

It is a super-2 number, since 2×2115238919² = 8948471368904577122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115238969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012204 + ... + 5012625.

It is an arithmetic number, because the mean of its divisors is an integer number (531315990).

Almost surely, 2^2115238919 is an apocalyptic number.

2115238919 is a deficient number, since it is larger than the sum of its proper divisors (10025041).

2115238919 is a wasteful number, since it uses less digits than its factorization.

2115238919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025040.

The product of its digits is 38880, while the sum is 41.

The square root of 2115238919 is about 45991.7266364289. The cubic root of 2115238919 is about 1283.6692646782.

The spelling of 2115238919 in words is "two billion, one hundred fifteen million, two hundred thirty-eight thousand, nine hundred nineteen".