3745121 has 4 divisors (see below), whose sum is σ = 3750144. Its totient is φ = 3740100.

The previous prime is 3745111. The next prime is 3745127. The reversal of 3745121 is 1215473.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3745121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3745127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145 + ... + 2966.

It is an arithmetic number, because the mean of its divisors is an integer number (937536).

Almost surely, 2^3745121 is an apocalyptic number.

It is an amenable number.

3745121 is a deficient number, since it is larger than the sum of its proper divisors (5023).

3745121 is an equidigital number, since it uses as much as digits as its factorization.

3745121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5022.

The product of its digits is 840, while the sum is 23.

The square root of 3745121 is about 1935.2315106984. The cubic root of 3745121 is about 155.2942174445.

The spelling of 3745121 in words is "three million, seven hundred forty-five thousand, one hundred twenty-one".