2145316232 has 16 divisors (see below), whose sum is σ = 4023318300. Its totient is φ = 1072431360.

The previous prime is 2145316231. The next prime is 2145316247. The reversal of 2145316232 is 2326135412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2076989476 + 68326756 = 45574^2 + 8266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2145316195 and 2145316204.

It is not an unprimeable number, because it can be changed into a prime (2145316231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15932 + ... + 67412.

Almost surely, 2^2145316232 is an apocalyptic number.

It is an amenable number.

2145316232 is a deficient number, since it is larger than the sum of its proper divisors (1878002068).

2145316232 is a wasteful number, since it uses less digits than its factorization.

2145316232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56696 (or 56692 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 2145316232 is about 46317.5585712373. The cubic root of 2145316232 is about 1289.7249643002.

The spelling of 2145316232 in words is "two billion, one hundred forty-five million, three hundred sixteen thousand, two hundred thirty-two".