3748121 has 4 divisors (see below), whose sum is σ = 4036452. Its totient is φ = 3459792.

The previous prime is 3748099. The next prime is 3748123. The reversal of 3748121 is 1218473.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 547600 + 3200521 = 740^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 3748121 - 2¹⁰ = 3747097 is a prime.

It is a super-2 number, since 2×3748121² = 28096822061282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3748123) 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, 144146 + ... + 144171.

It is an arithmetic number, because the mean of its divisors is an integer number (1009113).

Almost surely, 2^3748121 is an apocalyptic number.

It is an amenable number.

3748121 is a deficient number, since it is larger than the sum of its proper divisors (288331).

3748121 is a wasteful number, since it uses less digits than its factorization.

3748121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288330.

The product of its digits is 1344, while the sum is 26.

The square root of 3748121 is about 1936.0064566008. The cubic root of 3748121 is about 155.3356721185.

The spelling of 3748121 in words is "three million, seven hundred forty-eight thousand, one hundred twenty-one".