3142639 has 2 divisors, whose sum is σ = 3142640. Its totient is φ = 3142638.

The previous prime is 3142627. The next prime is 3142649. The reversal of 3142639 is 9362413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3142639 - 2⁷ = 3142511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3142649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571319 + 1571320.

It is an arithmetic number, because the mean of its divisors is an integer number (1571320).

Almost surely, 2^3142639 is an apocalyptic number.

3142639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142639 is an equidigital number, since it uses as much as digits as its factorization.

3142639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 3142639 is about 1772.7489952049. The cubic root of 3142639 is about 146.4754469679.

The spelling of 3142639 in words is "three million, one hundred forty-two thousand, six hundred thirty-nine".