2145504604 has 12 divisors (see below), whose sum is σ = 3764287800. Its totient is φ = 1069993808.

The previous prime is 2145504583. The next prime is 2145504629. The reversal of 2145504604 is 4064055412.

It is a happy number.

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, 687874 + ... + 690985.

It is an arithmetic number, because the mean of its divisors is an integer number (313690650).

Almost surely, 2^2145504604 is an apocalyptic number.

It is an amenable number.

2145504604 is a deficient number, since it is larger than the sum of its proper divisors (1618783196).

2145504604 is a wasteful number, since it uses less digits than its factorization.

2145504604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379252 (or 1379250 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 2145504604 is about 46319.5920102930. The cubic root of 2145504604 is about 1289.7627117982.

The spelling of 2145504604 in words is "two billion, one hundred forty-five million, five hundred four thousand, six hundred four".