2111502245 has 8 divisors (see below), whose sum is σ = 2581610616. Its totient is φ = 1657329856.

The previous prime is 2111502233. The next prime is 2111502247. The reversal of 2111502245 is 5422051112.

It can be written as a sum of positive squares in 4 ways, for example, as 868657729 + 1242844516 = 29473^2 + 35254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111502245 - 2⁶ = 2111502181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111502245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111502247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3983702 + ... + 3984231.

It is an arithmetic number, because the mean of its divisors is an integer number (322701327).

Almost surely, 2^2111502245 is an apocalyptic number.

It is an amenable number.

2111502245 is a deficient number, since it is larger than the sum of its proper divisors (470108371).

2111502245 is an equidigital number, since it uses as much as digits as its factorization.

2111502245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7967991.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2111502245 is about 45951.0853517085. The cubic root of 2111502245 is about 1282.9129307551.

Adding to 2111502245 its reverse (5422051112), we get a palindrome (7533553357).

The spelling of 2111502245 in words is "two billion, one hundred eleven million, five hundred two thousand, two hundred forty-five".