3750013 has 4 divisors (see below), whose sum is σ = 3970620. Its totient is φ = 3529408.

The previous prime is 3750001. The next prime is 3750017. The reversal of 3750013 is 3100573.

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 3305124 + 444889 = 1818^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 3750013 - 2¹³ = 3741821 is a prime.

It is a Duffinian number.

3750013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3750017) 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, 110278 + ... + 110311.

It is an arithmetic number, because the mean of its divisors is an integer number (992655).

Almost surely, 2^3750013 is an apocalyptic number.

It is an amenable number.

3750013 is a deficient number, since it is larger than the sum of its proper divisors (220607).

3750013 is a wasteful number, since it uses less digits than its factorization.

3750013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220606.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 3750013 is about 1936.4950296864. The cubic root of 3750013 is about 155.3618048265.

Adding to 3750013 its reverse (3100573), we get a palindrome (6850586).

The spelling of 3750013 in words is "three million, seven hundred fifty thousand, thirteen".