3148939 has 2 divisors, whose sum is σ = 3148940. Its totient is φ = 3148938.

The previous prime is 3148931. The next prime is 3148969. The reversal of 3148939 is 9398413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3148939 - 2³ = 3148931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3148898 and 3148907.

It is not a weakly prime, because it can be changed into another prime (3148931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1574469 + 1574470.

It is an arithmetic number, because the mean of its divisors is an integer number (1574470).

Almost surely, 2^3148939 is an apocalyptic number.

3148939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3148939 is an equidigital number, since it uses as much as digits as its factorization.

3148939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 3148939 is about 1774.5250068680. The cubic root of 3148939 is about 146.5732606593.

The spelling of 3148939 in words is "three million, one hundred forty-eight thousand, nine hundred thirty-nine".