2145103252 has 6 divisors (see below), whose sum is σ = 3753930698. Its totient is φ = 1072551624.

The previous prime is 2145103189. The next prime is 2145103277. The reversal of 2145103252 is 2523015412.

It can be written as a sum of positive squares in only one way, i.e., 2129453316 + 15649936 = 46146^2 + 3956^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268137903 + ... + 268137910.

Almost surely, 2^2145103252 is an apocalyptic number.

It is an amenable number.

2145103252 is a deficient number, since it is larger than the sum of its proper divisors (1608827446).

2145103252 is a wasteful number, since it uses less digits than its factorization.

2145103252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536275817 (or 536275815 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2145103252 is about 46315.2593860814. The cubic root of 2145103252 is about 1289.6822829915.

Adding to 2145103252 its reverse (2523015412), we get a palindrome (4668118664).

The spelling of 2145103252 in words is "two billion, one hundred forty-five million, one hundred three thousand, two hundred fifty-two".