3280139 has 2 divisors, whose sum is σ = 3280140. Its totient is φ = 3280138.

The previous prime is 3280127. The next prime is 3280157. The reversal of 3280139 is 9310823.

It is a weak prime.

It is an emirp because it is prime and its reverse (9310823) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3280139 is a prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (3280339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640069 + 1640070.

It is an arithmetic number, because the mean of its divisors is an integer number (1640070).

Almost surely, 2^3280139 is an apocalyptic number.

3280139 is a deficient number, since it is larger than the sum of its proper divisors (1).

3280139 is an equidigital number, since it uses as much as digits as its factorization.

3280139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3280139 is about 1811.1154021762. The cubic root of 3280139 is about 148.5812756312.

The spelling of 3280139 in words is "three million, two hundred eighty thousand, one hundred thirty-nine".