3147241 has 2 divisors, whose sum is σ = 3147242. Its totient is φ = 3147240.

The previous prime is 3147239. The next prime is 3147253. The reversal of 3147241 is 1427413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1946025 + 1201216 = 1395^2 + 1096^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147241 - 2¹ = 3147239 is a prime.

Together with 3147239, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3147211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573620 + 1573621.

It is an arithmetic number, because the mean of its divisors is an integer number (1573621).

Almost surely, 2^3147241 is an apocalyptic number.

It is an amenable number.

3147241 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147241 is an equidigital number, since it uses as much as digits as its factorization.

3147241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 3147241 is about 1774.0465044637. The cubic root of 3147241 is about 146.5469103929.

It can be divided in two parts, 31472 and 41, that added together give a palindrome (31513).

The spelling of 3147241 in words is "three million, one hundred forty-seven thousand, two hundred forty-one".