3145147 has 2 divisors, whose sum is σ = 3145148. Its totient is φ = 3145146.

The previous prime is 3145141. The next prime is 3145157. The reversal of 3145147 is 7415413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3145147 - 2⁷ = 3145019 is a prime.

It is a super-3 number, since 3×3145147³ = 93334907312727274569, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3145141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572573 + 1572574.

It is an arithmetic number, because the mean of its divisors is an integer number (1572574).

Almost surely, 2^3145147 is an apocalyptic number.

3145147 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145147 is an equidigital number, since it uses as much as digits as its factorization.

3145147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 3145147 is about 1773.4562300773. The cubic root of 3145147 is about 146.5144017805.

The spelling of 3145147 in words is "three million, one hundred forty-five thousand, one hundred forty-seven".