6225145 has 8 divisors (see below), whose sum is σ = 7909704. Its totient is φ = 4687104.

The previous prime is 6225137. The next prime is 6225181. The reversal of 6225145 is 5415226.

It can be written as a sum of positive squares in 4 ways, for example, as 1225449 + 4999696 = 1107^2 + 2236^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6225145 - 2³ = 6225137 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36534 + ... + 36703.

It is an arithmetic number, because the mean of its divisors is an integer number (988713).

Almost surely, 2^6225145 is an apocalyptic number.

It is an amenable number.

6225145 is a deficient number, since it is larger than the sum of its proper divisors (1684559).

6225145 is a wasteful number, since it uses less digits than its factorization.

6225145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73259.

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

The square root of 6225145 is about 2495.0240479803. The cubic root of 6225145 is about 183.9570729254.

The spelling of 6225145 in words is "six million, two hundred twenty-five thousand, one hundred forty-five".