3146639 has 2 divisors, whose sum is σ = 3146640. Its totient is φ = 3146638.

The previous prime is 3146623. The next prime is 3146651. The reversal of 3146639 is 9366413.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3146639 - 2⁴ = 3146623 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3146659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573319 + 1573320.

It is an arithmetic number, because the mean of its divisors is an integer number (1573320).

Almost surely, 2^3146639 is an apocalyptic number.

3146639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3146639 is an equidigital number, since it uses as much as digits as its factorization.

3146639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 3146639 is about 1773.8768277420. The cubic root of 3146639 is about 146.5375660322.

The spelling of 3146639 in words is "three million, one hundred forty-six thousand, six hundred thirty-nine".