2115023245 has 4 divisors (see below), whose sum is σ = 2538027900. Its totient is φ = 1692018592.

The previous prime is 2115023243. The next prime is 2115023257. The reversal of 2115023245 is 5423205112.

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 800380681 + 1314642564 = 28291^2 + 36258^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115023245 - 2¹ = 2115023243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115023243) 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, 211502320 + ... + 211502329.

It is an arithmetic number, because the mean of its divisors is an integer number (634506975).

Almost surely, 2^2115023245 is an apocalyptic number.

It is an amenable number.

2115023245 is a deficient number, since it is larger than the sum of its proper divisors (423004655).

2115023245 is an equidigital number, since it uses as much as digits as its factorization.

2115023245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423004654.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2115023245 is about 45989.3818723409. The cubic root of 2115023245 is about 1283.6256346982.

Adding to 2115023245 its reverse (5423205112), we get a palindrome (7538228357).

The spelling of 2115023245 in words is "two billion, one hundred fifteen million, twenty-three thousand, two hundred forty-five".