3145509839 has 2 divisors, whose sum is σ = 3145509840. Its totient is φ = 3145509838.

The previous prime is 3145509821. The next prime is 3145509943. The reversal of 3145509839 is 9389055413.

It is a weak prime.

It is an emirp because it is prime and its reverse (9389055413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3145509839 - 2¹⁶ = 3145444303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3145509793 and 3145509802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3145509239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572754919 + 1572754920.

It is an arithmetic number, because the mean of its divisors is an integer number (1572754920).

Almost surely, 2^3145509839 is an apocalyptic number.

3145509839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145509839 is an equidigital number, since it uses as much as digits as its factorization.

3145509839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 3145509839 is about 56084.8450029061. The cubic root of 3145509839 is about 1465.2003576144.

The spelling of 3145509839 in words is "three billion, one hundred forty-five million, five hundred nine thousand, eight hundred thirty-nine".