2145202325 has 24 divisors (see below), whose sum is σ = 3138132480. Its totient is φ = 1423540800.

The previous prime is 2145202271. The next prime is 2145202331. The reversal of 2145202325 is 5232025412.

It is a de Polignac number, because none of the positive numbers 2^k-2145202325 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145202294 and 2145202303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192290 + ... + 203139.

It is an arithmetic number, because the mean of its divisors is an integer number (130755520).

Almost surely, 2^2145202325 is an apocalyptic number.

2145202325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145202325 is a deficient number, since it is larger than the sum of its proper divisors (992930155).

2145202325 is a wasteful number, since it uses less digits than its factorization.

2145202325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395477 (or 395472 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2145202325 is about 46316.3289240415. The cubic root of 2145202325 is about 1289.7021376264.

Adding to 2145202325 its reverse (5232025412), we get a palindrome (7377227737).

The spelling of 2145202325 in words is "two billion, one hundred forty-five million, two hundred two thousand, three hundred twenty-five".