2145113355 has 128 divisors (see below), whose sum is σ = 4454940672. Its totient is φ = 855360000.

The previous prime is 2145113353. The next prime is 2145113359. The reversal of 2145113355 is 5533115412.

It is not a de Polignac number, because 2145113355 - 2¹ = 2145113353 is a prime.

It is a super-2 number, since 2×2145113355² = 9203022611598712050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145113353) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6480540 + ... + 6480870.

It is an arithmetic number, because the mean of its divisors is an integer number (34804224).

Almost surely, 2^2145113355 is an apocalyptic number.

2145113355 is an abundant number, since it is smaller than the sum of its proper divisors (2309827317).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145113355 is a wasteful number, since it uses less digits than its factorization.

2145113355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its digits is 9000, while the sum is 30.

The square root of 2145113355 is about 46315.3684536785. The cubic root of 2145113355 is about 1289.6843077021.

Adding to 2145113355 its reverse (5533115412), we get a palindrome (7678228767).

The spelling of 2145113355 in words is "two billion, one hundred forty-five million, one hundred thirteen thousand, three hundred fifty-five".