2115090379 has 4 divisors (see below), whose sum is σ = 2188024560. Its totient is φ = 2042156200.

The previous prime is 2115090349. The next prime is 2115090401. The reversal of 2115090379 is 9730905112.

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 2115090379 - 2²¹ = 2112993227 is a prime.

It is a super-2 number, since 2×2115090379² = 8947214622676727282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115090349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36467047 + ... + 36467104.

It is an arithmetic number, because the mean of its divisors is an integer number (547006140).

Almost surely, 2^2115090379 is an apocalyptic number.

2115090379 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2115090379 is a deficient number, since it is larger than the sum of its proper divisors (72934181).

2115090379 is an equidigital number, since it uses as much as digits as its factorization.

2115090379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72934180.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 2115090379 is about 45990.1117524191. Note that the first 3 decimals coincide. The cubic root of 2115090379 is about 1283.6392159535.

The spelling of 2115090379 in words is "two billion, one hundred fifteen million, ninety thousand, three hundred seventy-nine".