7145147 has 6 divisors (see below), whose sum is σ = 7218108. Its totient is φ = 7072884.

The previous prime is 7145137. The next prime is 7145153. The reversal of 7145147 is 7415417.

It is not a de Polignac number, because 7145147 - 2¹² = 7141051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7145137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15908 + ... + 16350.

It is an arithmetic number, because the mean of its divisors is an integer number (1203018).

Almost surely, 2^7145147 is an apocalyptic number.

7145147 is a deficient number, since it is larger than the sum of its proper divisors (72961).

7145147 is an equidigital number, since it uses as much as digits as its factorization.

7145147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 570 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 7145147 is about 2673.0407778408. The cubic root of 7145147 is about 192.6062560623.

The spelling of 7145147 in words is "seven million, one hundred forty-five thousand, one hundred forty-seven".