2145453532 has 12 divisors (see below), whose sum is σ = 3754875096. Its totient is φ = 1072632080.

The previous prime is 2145453529. The next prime is 2145453551. The reversal of 2145453532 is 2353545412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60807 + ... + 89377.

It is an arithmetic number, because the mean of its divisors is an integer number (312906258).

Almost surely, 2^2145453532 is an apocalyptic number.

It is an amenable number.

2145453532 is a deficient number, since it is larger than the sum of its proper divisors (1609421564).

2145453532 is a wasteful number, since it uses less digits than its factorization.

2145453532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47348 (or 47346 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 2145453532 is about 46319.0407068195. The cubic root of 2145453532 is about 1289.7524777980.

Adding to 2145453532 its reverse (2353545412), we get a palindrome (4498998944).

The spelling of 2145453532 in words is "two billion, one hundred forty-five million, four hundred fifty-three thousand, five hundred thirty-two".