2113540245 has 24 divisors (see below), whose sum is σ = 3691445472. Its totient is φ = 1118613600.

The previous prime is 2113540243. The next prime is 2113540277. The reversal of 2113540245 is 5420453112.

2113540245 is a `hidden beast` number, since 2 + 113 + 540 + 2 + 4 + 5 = 666.

It is not a de Polignac number, because 2113540245 - 2¹ = 2113540243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113540243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173371 + ... + 185160.

It is an arithmetic number, because the mean of its divisors is an integer number (153810228).

Almost surely, 2^2113540245 is an apocalyptic number.

It is an amenable number.

2113540245 is a deficient number, since it is larger than the sum of its proper divisors (1577905227).

2113540245 is a wasteful number, since it uses less digits than its factorization.

2113540245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358673 (or 358670 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2113540245 is about 45973.2557581035. The cubic root of 2113540245 is about 1283.3255494365.

Adding to 2113540245 its reverse (5420453112), we get a palindrome (7533993357).

The spelling of 2113540245 in words is "two billion, one hundred thirteen million, five hundred forty thousand, two hundred forty-five".