2945825 has 6 divisors (see below), whose sum is σ = 3652854. Its totient is φ = 2356640.

The previous prime is 2945807. The next prime is 2945851. The reversal of 2945825 is 5285492.

2945825 = 160² + 161² + ... + 234².

It is a happy number.

2945825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 28561 + 2917264 = 169^2 + 1708^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2945825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58892 + ... + 58941.

It is an arithmetic number, because the mean of its divisors is an integer number (608809).

2^2945825 is an apocalyptic number.

2945825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2945825 is a deficient number, since it is larger than the sum of its proper divisors (707029).

2945825 is a wasteful number, since it uses less digits than its factorization.

2945825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117843 (or 117838 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 2945825 is about 1716.3405839168. The cubic root of 2945825 is about 143.3515240419.

It can be divided in two parts, 29 and 45825, that added together give a palindrome (45854).

The spelling of 2945825 in words is "two million, nine hundred forty-five thousand, eight hundred twenty-five".