2145455204 has 12 divisors (see below), whose sum is σ = 3760408428. Its totient is φ = 1071052800.

The previous prime is 2145455189. The next prime is 2145455237. The reversal of 2145455204 is 4025545412.

It can be written as a sum of positive squares in 2 ways, for example, as 1134342400 + 1011112804 = 33680^2 + 31798^2 .

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, 415817 + ... + 420944.

It is an arithmetic number, because the mean of its divisors is an integer number (313367369).

Almost surely, 2^2145455204 is an apocalyptic number.

It is an amenable number.

2145455204 is a deficient number, since it is larger than the sum of its proper divisors (1614953224).

2145455204 is a wasteful number, since it uses less digits than its factorization.

2145455204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837406 (or 837404 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 2145455204 is about 46319.0587555490. The cubic root of 2145455204 is about 1289.7528128422.

The spelling of 2145455204 in words is "two billion, one hundred forty-five million, four hundred fifty-five thousand, two hundred four".