3751513 has 4 divisors (see below), whose sum is σ = 3760180. Its totient is φ = 3742848.

The previous prime is 3751511. The next prime is 3751519. The reversal of 3751513 is 3151573.

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 1669264 + 2082249 = 1292^2 + 1443^2 .

It is a 4-Lehmer number, since φ(3751513) divides (3751513-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 3751513 - 2¹ = 3751511 is a prime.

It is a Duffinian number.

3751513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3751511) 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, 3648 + ... + 4561.

It is an arithmetic number, because the mean of its divisors is an integer number (940045).

Almost surely, 2^3751513 is an apocalyptic number.

It is an amenable number.

3751513 is a deficient number, since it is larger than the sum of its proper divisors (8667).

3751513 is an equidigital number, since it uses as much as digits as its factorization.

3751513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8666.

The product of its digits is 1575, while the sum is 25.

The square root of 3751513 is about 1936.8822886278. The cubic root of 3751513 is about 155.3825169006.

The spelling of 3751513 in words is "three million, seven hundred fifty-one thousand, five hundred thirteen".