7125915 has 16 divisors (see below), whose sum is σ = 11563776. Its totient is φ = 3746400.

The previous prime is 7125901. The next prime is 7125947. The reversal of 7125915 is 5195217.

It is not a de Polignac number, because 7125915 - 2⁷ = 7125787 is a prime.

It is a super-3 number, since 3×7125915³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2281 + ... + 4410.

It is an arithmetic number, because the mean of its divisors is an integer number (722736).

Almost surely, 2^7125915 is an apocalyptic number.

7125915 is a deficient number, since it is larger than the sum of its proper divisors (4437861).

7125915 is a wasteful number, since it uses less digits than its factorization.

7125915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770.

The product of its digits is 3150, while the sum is 30.

The square root of 7125915 is about 2669.4409527090. The cubic root of 7125915 is about 192.4332933540.

The spelling of 7125915 in words is "seven million, one hundred twenty-five thousand, nine hundred fifteen".