2145894582 has 16 divisors (see below), whose sum is σ = 4621926960. Its totient is φ = 660275232.

The previous prime is 2145894473. The next prime is 2145894601. The reversal of 2145894582 is 2854985412.

It is a congruent 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, 13755657 + ... + 13755812.

It is an arithmetic number, because the mean of its divisors is an integer number (288870435).

Almost surely, 2^2145894582 is an apocalyptic number.

2145894582 is an abundant number, since it is smaller than the sum of its proper divisors (2476032378).

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

2145894582 is a wasteful number, since it uses less digits than its factorization.

2145894582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27511487.

The product of its digits is 921600, while the sum is 48.

The square root of 2145894582 is about 46323.8014631787. The cubic root of 2145894582 is about 1289.8408517084.

The spelling of 2145894582 in words is "two billion, one hundred forty-five million, eight hundred ninety-four thousand, five hundred eighty-two".