2112545315 has 4 divisors (see below), whose sum is σ = 2535054384. Its totient is φ = 1690036248.

The previous prime is 2112545297. The next prime is 2112545317. The reversal of 2112545315 is 5135452112.

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 2112545315 - 2¹⁴ = 2112528931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112545317) 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, 211254527 + ... + 211254536.

It is an arithmetic number, because the mean of its divisors is an integer number (633763596).

Almost surely, 2^2112545315 is an apocalyptic number.

2112545315 is a deficient number, since it is larger than the sum of its proper divisors (422509069).

2112545315 is an equidigital number, since it uses as much as digits as its factorization.

2112545315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422509068.

The product of its digits is 6000, while the sum is 29.

The square root of 2112545315 is about 45962.4337366941. The cubic root of 2112545315 is about 1283.1241465226.

Adding to 2112545315 its reverse (5135452112), we get a palindrome (7247997427).

The spelling of 2112545315 in words is "two billion, one hundred twelve million, five hundred forty-five thousand, three hundred fifteen".