7145113 has 4 divisors (see below), whose sum is σ = 7262308. Its totient is φ = 7027920.

The previous prime is 7145101. The next prime is 7145129. The reversal of 7145113 is 3115417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3948169 + 3196944 = 1987^2 + 1788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7145113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7145153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58506 + ... + 58627.

It is an arithmetic number, because the mean of its divisors is an integer number (1815577).

Almost surely, 2^7145113 is an apocalyptic number.

It is an amenable number.

7145113 is a deficient number, since it is larger than the sum of its proper divisors (117195).

7145113 is a wasteful number, since it uses less digits than its factorization.

7145113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117194.

The product of its digits is 420, while the sum is 22.

The square root of 7145113 is about 2673.0344180351. The cubic root of 7145113 is about 192.6059505578.

It can be divided in two parts, 71 and 45113, that multiplied together give a palindrome (3203023).

The spelling of 7145113 in words is "seven million, one hundred forty-five thousand, one hundred thirteen".