2145250452 has 24 divisors (see below), whose sum is σ = 5019537600. Its totient is φ = 713090176.

The previous prime is 2145250433. The next prime is 2145250477. The reversal of 2145250452 is 2540525412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244677 + ... + 253292.

It is an arithmetic number, because the mean of its divisors is an integer number (209147400).

Almost surely, 2^2145250452 is an apocalyptic number.

It is an amenable number.

2145250452 is an abundant number, since it is smaller than the sum of its proper divisors (2874287148).

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

2145250452 is a wasteful number, since it uses less digits than its factorization.

2145250452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498335 (or 498333 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2145250452 is about 46316.8484679172. The cubic root of 2145250452 is about 1289.7117822537.

Adding to 2145250452 its reverse (2540525412), we get a palindrome (4685775864).

The spelling of 2145250452 in words is "two billion, one hundred forty-five million, two hundred fifty thousand, four hundred fifty-two".