2115125357 has 4 divisors (see below), whose sum is σ = 2121883260. Its totient is φ = 2108367456.

The previous prime is 2115125347. The next prime is 2115125359. The reversal of 2115125357 is 7535215112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 809459401 + 1305665956 = 28451^2 + 36134^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115125357 - 2¹⁸ = 2114863213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115125359) 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, 3378482 + ... + 3379107.

It is an arithmetic number, because the mean of its divisors is an integer number (530470815).

Almost surely, 2^2115125357 is an apocalyptic number.

It is an amenable number.

2115125357 is a deficient number, since it is larger than the sum of its proper divisors (6757903).

2115125357 is an equidigital number, since it uses as much as digits as its factorization.

2115125357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757902.

The product of its digits is 10500, while the sum is 32.

The square root of 2115125357 is about 45990.4920282443. The cubic root of 2115125357 is about 1283.6462919135.

The spelling of 2115125357 in words is "two billion, one hundred fifteen million, one hundred twenty-five thousand, three hundred fifty-seven".