2145124325 has 12 divisors (see below), whose sum is σ = 2775605088. Its totient is φ = 1641486000.

The previous prime is 2145124297. The next prime is 2145124351. The reversal of 2145124325 is 5234215412.

It is not a de Polignac number, because 2145124325 - 2²² = 2140930021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1864751 + ... + 1865900.

It is an arithmetic number, because the mean of its divisors is an integer number (231300424).

Almost surely, 2^2145124325 is an apocalyptic number.

2145124325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145124325 is a deficient number, since it is larger than the sum of its proper divisors (630480763).

2145124325 is a wasteful number, since it uses less digits than its factorization.

2145124325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730684 (or 3730679 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 2145124325 is about 46315.4868807400. The cubic root of 2145124325 is about 1289.6865061582.

Adding to 2145124325 its reverse (5234215412), we get a palindrome (7379339737).

The spelling of 2145124325 in words is "two billion, one hundred forty-five million, one hundred twenty-four thousand, three hundred twenty-five".