7125669 has 12 divisors (see below), whose sum is σ = 10898316. Its totient is φ = 4470912.

The previous prime is 7125661. The next prime is 7125673. The reversal of 7125669 is 9665217.

It can be written as a sum of positive squares in 2 ways, for example, as 2117025 + 5008644 = 1455^2 + 2238^2 .

It is not a de Polignac number, because 7125669 - 2³ = 7125661 is a prime.

It is a super-2 number, since 2×7125669² = 101550317395122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125661) 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 11 ways as a sum of consecutive naturals, for example, 23134 + ... + 23439.

It is an arithmetic number, because the mean of its divisors is an integer number (908193).

Almost surely, 2^7125669 is an apocalyptic number.

It is an amenable number.

7125669 is a deficient number, since it is larger than the sum of its proper divisors (3772647).

7125669 is a wasteful number, since it uses less digits than its factorization.

7125669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46596 (or 46593 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 7125669 is about 2669.3948752479. The cubic root of 7125669 is about 192.4310789420.

The spelling of 7125669 in words is "seven million, one hundred twenty-five thousand, six hundred sixty-nine".