2145263612 has 24 divisors (see below), whose sum is σ = 3880501632. Its totient is φ = 1036641600.

The previous prime is 2145263599. The next prime is 2145263639. The reversal of 2145263612 is 2163625412.

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, 84662 + ... + 107042.

It is an arithmetic number, because the mean of its divisors is an integer number (161687568).

Almost surely, 2^2145263612 is an apocalyptic number.

It is an amenable number.

2145263612 is a deficient number, since it is larger than the sum of its proper divisors (1735238020).

2145263612 is a wasteful number, since it uses less digits than its factorization.

2145263612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23189 (or 23187 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 2145263612 is about 46316.9905326328. The cubic root of 2145263612 is about 1289.7144194861.

The spelling of 2145263612 in words is "two billion, one hundred forty-five million, two hundred sixty-three thousand, six hundred twelve".