3815245 has 16 divisors (see below), whose sum is σ = 5321088. Its totient is φ = 2571840.

The previous prime is 3815243. The next prime is 3815249. The reversal of 3815245 is 5425183.

It is not a de Polignac number, because 3815245 - 2¹ = 3815243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242 + ... + 3028.

It is an arithmetic number, because the mean of its divisors is an integer number (332568).

Almost surely, 2^3815245 is an apocalyptic number.

3815245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3815245 is a deficient number, since it is larger than the sum of its proper divisors (1505843).

3815245 is a wasteful number, since it uses less digits than its factorization.

3815245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860.

The product of its digits is 4800, while the sum is 28.

The square root of 3815245 is about 1953.2652149670. The cubic root of 3815245 is about 156.2574780421.

The spelling of 3815245 in words is "three million, eight hundred fifteen thousand, two hundred forty-five".