2145238264 has 16 divisors (see below), whose sum is σ = 4331731320. Its totient is φ = 990109920.

The previous prime is 2145238247. The next prime is 2145238307. The reversal of 2145238264 is 4628325412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10313542 + ... + 10313749.

Almost surely, 2^2145238264 is an apocalyptic number.

It is an amenable number.

2145238264 is an abundant number, since it is smaller than the sum of its proper divisors (2186493056).

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

2145238264 is a wasteful number, since it uses less digits than its factorization.

2145238264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20627310 (or 20627306 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 2145238264 is about 46316.7168957386. The cubic root of 2145238264 is about 1289.7093397981.

The spelling of 2145238264 in words is "two billion, one hundred forty-five million, two hundred thirty-eight thousand, two hundred sixty-four".