2113453145 has 8 divisors (see below), whose sum is σ = 2552298504. Its totient is φ = 1679992704.

The previous prime is 2113453127. The next prime is 2113453151. The reversal of 2113453145 is 5413543112.

It can be written as a sum of positive squares in 4 ways, for example, as 12880921 + 2100572224 = 3589^2 + 45832^2 .

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 2113453145 - 2⁶ = 2113453081 is a prime.

It is a super-2 number, since 2×2113453145² = 8933368392220782050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345364 + ... + 1346933.

It is an arithmetic number, because the mean of its divisors is an integer number (319037313).

Almost surely, 2^2113453145 is an apocalyptic number.

It is an amenable number.

2113453145 is a deficient number, since it is larger than the sum of its proper divisors (438845359).

2113453145 is a wasteful number, since it uses less digits than its factorization.

2113453145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692459.

The product of its digits is 7200, while the sum is 29.

The square root of 2113453145 is about 45972.3084584623. The cubic root of 2113453145 is about 1283.3079203753.

Adding to 2113453145 its reverse (5413543112), we get a palindrome (7526996257).

The spelling of 2113453145 in words is "two billion, one hundred thirteen million, four hundred fifty-three thousand, one hundred forty-five".