7113257 has 4 divisors (see below), whose sum is σ = 7144020. Its totient is φ = 7082496.

The previous prime is 7113221. The next prime is 7113299. The reversal of 7113257 is 7523117.

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 477481 + 6635776 = 691^2 + 2576^2 .

It is a cyclic number.

It is not a de Polignac number, because 7113257 - 2¹⁰ = 7112233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7113857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15032 + ... + 15497.

It is an arithmetic number, because the mean of its divisors is an integer number (1786005).

Almost surely, 2^7113257 is an apocalyptic number.

It is an amenable number.

7113257 is a deficient number, since it is larger than the sum of its proper divisors (30763).

7113257 is a wasteful number, since it uses less digits than its factorization.

7113257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30762.

The product of its digits is 1470, while the sum is 26.

The square root of 7113257 is about 2667.0689904837. The cubic root of 7113257 is about 192.3192839331.

The spelling of 7113257 in words is "seven million, one hundred thirteen thousand, two hundred fifty-seven".