3731513 has 2 divisors, whose sum is σ = 3731514. Its totient is φ = 3731512.

The previous prime is 3731509. The next prime is 3731521. The reversal of 3731513 is 3151373.

It is a happy number.

3731513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3636649 + 94864 = 1907^2 + 308^2 .

It is an emirp because it is prime and its reverse (3151373) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3731513 - 2² = 3731509 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3731593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865756 + 1865757.

It is an arithmetic number, because the mean of its divisors is an integer number (1865757).

Almost surely, 2^3731513 is an apocalyptic number.

It is an amenable number.

3731513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3731513 is an equidigital number, since it uses as much as digits as its factorization.

3731513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945, while the sum is 23.

The square root of 3731513 is about 1931.7124527217. The cubic root of 3731513 is about 155.1059005740.

Adding to 3731513 its reverse (3151373), we get a palindrome (6882886).

The spelling of 3731513 in words is "three million, seven hundred thirty-one thousand, five hundred thirteen".