2113420545 has 32 divisors (see below), whose sum is σ = 3844579200. Its totient is φ = 1100941632.

The previous prime is 2113420469. The next prime is 2113420553. The reversal of 2113420545 is 5450243112.

2113420545 is a `hidden beast` number, since 2 + 113 + 4 + 2 + 0 + 545 = 666.

It is not a de Polignac number, because 2113420545 - 2¹⁵ = 2113387777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 176230 + ... + 187839.

It is an arithmetic number, because the mean of its divisors is an integer number (120143100).

Almost surely, 2^2113420545 is an apocalyptic number.

It is an amenable number.

2113420545 is a deficient number, since it is larger than the sum of its proper divisors (1731158655).

2113420545 is a wasteful number, since it uses less digits than its factorization.

2113420545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364126 (or 364120 counting only the distinct ones).

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

The square root of 2113420545 is about 45971.9538958265. The cubic root of 2113420545 is about 1283.3013220028.

Adding to 2113420545 its reverse (5450243112), we get a palindrome (7563663657).

The spelling of 2113420545 in words is "two billion, one hundred thirteen million, four hundred twenty thousand, five hundred forty-five".