3207139 has 16 divisors (see below), whose sum is σ = 3669120. Its totient is φ = 2782080.

The previous prime is 3207137. The next prime is 3207151. The reversal of 3207139 is 9317023.

It is a cyclic number.

It is not a de Polignac number, because 3207139 - 2¹ = 3207137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3207133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17629 + ... + 17809.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

Almost surely, 2^3207139 is an apocalyptic number.

3207139 is a deficient number, since it is larger than the sum of its proper divisors (461981).

3207139 is a wasteful number, since it uses less digits than its factorization.

3207139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 3207139 is about 1790.8486814915. The cubic root of 3207139 is about 147.4707631413.

The spelling of 3207139 in words is "three million, two hundred seven thousand, one hundred thirty-nine".