2145302544 has 160 divisors (see below), whose sum is σ = 6942698496. Its totient is φ = 554549760.

The previous prime is 2145302527. The next prime is 2145302563. The reversal of 2145302544 is 4452035412.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 837714 + ... + 840270.

Almost surely, 2^2145302544 is an apocalyptic number.

2145302544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145302544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3471349248).

2145302544 is an abundant number, since it is smaller than the sum of its proper divisors (4797395952).

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

2145302544 is a wasteful number, since it uses less digits than its factorization.

2145302544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813 (or 2807 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2145302544 is about 46317.4108084638. The cubic root of 2145302544 is about 1289.7222213025.

Adding to 2145302544 its reverse (4452035412), we get a palindrome (6597337956).

The spelling of 2145302544 in words is "two billion, one hundred forty-five million, three hundred two thousand, five hundred forty-four".