7125529 has 4 divisors (see below), whose sum is σ = 7277184. Its totient is φ = 6973876.

The previous prime is 7125527. The next prime is 7125553. The reversal of 7125529 is 9255217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7125529 - 2¹ = 7125527 is a prime.

It is a Smith number, since the sum of its digits (31) 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 self number, because there is not a number n which added to its sum of digits gives 7125529.

It is not an unprimeable number, because it can be changed into a prime (7125527) 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, 75757 + ... + 75850.

It is an arithmetic number, because the mean of its divisors is an integer number (1819296).

Almost surely, 2^7125529 is an apocalyptic number.

It is an amenable number.

7125529 is a deficient number, since it is larger than the sum of its proper divisors (151655).

7125529 is a wasteful number, since it uses less digits than its factorization.

7125529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151654.

The product of its digits is 6300, while the sum is 31.

The square root of 7125529 is about 2669.3686519475. The cubic root of 7125529 is about 192.4298186848.

It can be divided in two parts, 712 and 5529, that added together give a square (6241 = 79²).

The spelling of 7125529 in words is "seven million, one hundred twenty-five thousand, five hundred twenty-nine".