2145601284 has 24 divisors (see below), whose sum is σ = 5031566400. Its totient is φ = 711605664.

The previous prime is 2145601267. The next prime is 2145601291. The reversal of 2145601284 is 4821065412.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446859 + ... + 451634.

It is an arithmetic number, because the mean of its divisors is an integer number (209648600).

Almost surely, 2^2145601284 is an apocalyptic number.

It is an amenable number.

2145601284 is an abundant number, since it is smaller than the sum of its proper divisors (2885965116).

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

2145601284 is a wasteful number, since it uses less digits than its factorization.

2145601284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898699 (or 898697 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2145601284 is about 46320.6356174006. The cubic root of 2145601284 is about 1289.7820844571.

Adding to 2145601284 its reverse (4821065412), we get a palindrome (6966666696).

The spelling of 2145601284 in words is "two billion, one hundred forty-five million, six hundred one thousand, two hundred eighty-four".