2145452332 has 24 divisors (see below), whose sum is σ = 3798002880. Its totient is φ = 1060375680.

The previous prime is 2145452321. The next prime is 2145452339. The reversal of 2145452332 is 2332545412.

It is a junction number, because it is equal to n+sod(n) for n = 2145452294 and 2145452303.

It is not an unprimeable number, because it can be changed into a prime (2145452339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122782 + ... + 139162.

It is an arithmetic number, because the mean of its divisors is an integer number (158250120).

Almost surely, 2^2145452332 is an apocalyptic number.

It is an amenable number.

2145452332 is a deficient number, since it is larger than the sum of its proper divisors (1652550548).

2145452332 is a wasteful number, since it uses less digits than its factorization.

2145452332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16761 (or 16759 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 2145452332 is about 46319.0277531815. The cubic root of 2145452332 is about 1289.7522373355.

Adding to 2145452332 its reverse (2332545412), we get a palindrome (4477997744).

The spelling of 2145452332 in words is "two billion, one hundred forty-five million, four hundred fifty-two thousand, three hundred thirty-two".