3745213 has 4 divisors (see below), whose sum is σ = 3754780. Its totient is φ = 3735648.

The previous prime is 3745211. The next prime is 3745229. The reversal of 3745213 is 3125473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3125473 = 13 ⋅240421.

It can be written as a sum of positive squares in 2 ways, for example, as 2010724 + 1734489 = 1418^2 + 1317^2 .

It is a cyclic number.

It is not a de Polignac number, because 3745213 - 2¹ = 3745211 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 (3745211) 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 3 ways as a sum of consecutive naturals, for example, 4170 + ... + 4987.

It is an arithmetic number, because the mean of its divisors is an integer number (938695).

Almost surely, 2^3745213 is an apocalyptic number.

It is an amenable number.

3745213 is a deficient number, since it is larger than the sum of its proper divisors (9567).

3745213 is an equidigital number, since it uses as much as digits as its factorization.

3745213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566.

The product of its digits is 2520, while the sum is 25.

The square root of 3745213 is about 1935.2552803183. The cubic root of 3745213 is about 155.2954890502.

The spelling of 3745213 in words is "three million, seven hundred forty-five thousand, two hundred thirteen".