7122523 has 4 divisors (see below), whose sum is σ = 7135128. Its totient is φ = 7109920.

The previous prime is 7122517. The next prime is 7122551. The reversal of 7122523 is 3252217.

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

It is a cyclic number.

It is not a de Polignac number, because 7122523 - 2⁵ = 7122491 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7122494 and 7122503.

It is not an unprimeable number, because it can be changed into a prime (7122593) 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, 5413 + ... + 6598.

It is an arithmetic number, because the mean of its divisors is an integer number (1783782).

Almost surely, 2^7122523 is an apocalyptic number.

7122523 is a deficient number, since it is larger than the sum of its proper divisors (12605).

7122523 is a wasteful number, since it uses less digits than its factorization.

7122523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12604.

The product of its digits is 840, while the sum is 22.

The square root of 7122523 is about 2668.8055380638. The cubic root of 7122523 is about 192.4027551786.

The spelling of 7122523 in words is "seven million, one hundred twenty-two thousand, five hundred twenty-three".