2145152232 has 48 divisors (see below), whose sum is σ = 5826502500. Its totient is φ = 712993536.

The previous prime is 2145152189. The next prime is 2145152237. The reversal of 2145152232 is 2322515412.

It can be written as a sum of positive squares in 2 ways, for example, as 2024460036 + 120692196 = 44994^2 + 10986^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2145152196 and 2145152205.

It is not an unprimeable number, because it can be changed into a prime (2145152237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17557 + ... + 67812.

Almost surely, 2^2145152232 is an apocalyptic number.

It is an amenable number.

2145152232 is an abundant number, since it is smaller than the sum of its proper divisors (3681350268).

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

2145152232 is a wasteful number, since it uses less digits than its factorization.

2145152232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85730 (or 85723 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2145152232 is about 46315.7881504784. The cubic root of 2145152232 is about 1289.6920988605.

Adding to 2145152232 its reverse (2322515412), we get a palindrome (4467667644).

The spelling of 2145152232 in words is "two billion, one hundred forty-five million, one hundred fifty-two thousand, two hundred thirty-two".