3187913 has 2 divisors, whose sum is σ = 3187914. Its totient is φ = 3187912.

The previous prime is 3187907. The next prime is 3187931. The reversal of 3187913 is 3197813.

3187913 is nontrivially palindromic in base 9.

Together with next prime (3187931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2347024 + 840889 = 1532^2 + 917^2 .

It is an emirp because it is prime and its reverse (3197813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3187913 - 2²⁰ = 2139337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3187913.

It is not a weakly prime, because it can be changed into another prime (3187903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593956 + 1593957.

It is an arithmetic number, because the mean of its divisors is an integer number (1593957).

Almost surely, 2^3187913 is an apocalyptic number.

It is an amenable number.

3187913 is a deficient number, since it is larger than the sum of its proper divisors (1).

3187913 is an equidigital number, since it uses as much as digits as its factorization.

3187913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 3187913 is about 1785.4727665243. The cubic root of 3187913 is about 147.1754888151.

The spelling of 3187913 in words is "three million, one hundred eighty-seven thousand, nine hundred thirteen".