3145245139 has 2 divisors, whose sum is σ = 3145245140. Its totient is φ = 3145245138.

The previous prime is 3145245121. The next prime is 3145245149. The reversal of 3145245139 is 9315425413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3145245139 - 2¹¹ = 3145243091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3145245098 and 3145245107.

It is not a weakly prime, because it can be changed into another prime (3145245149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572622569 + 1572622570.

It is an arithmetic number, because the mean of its divisors is an integer number (1572622570).

Almost surely, 2^3145245139 is an apocalyptic number.

3145245139 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145245139 is an equidigital number, since it uses as much as digits as its factorization.

3145245139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 37.

The square root of 3145245139 is about 56082.4851357356. The cubic root of 3145245139 is about 1465.1592567612.

The spelling of 3145245139 in words is "three billion, one hundred forty-five million, two hundred forty-five thousand, one hundred thirty-nine".