7251915 has 16 divisors (see below), whose sum is σ = 12658176. Its totient is φ = 3516000.

The previous prime is 7251899. The next prime is 7251919. The reversal of 7251915 is 5191527.

It is not a de Polignac number, because 7251915 - 2⁴ = 7251899 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7251919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21811 + ... + 22140.

It is an arithmetic number, because the mean of its divisors is an integer number (791136).

Almost surely, 2^7251915 is an apocalyptic number.

7251915 is a deficient number, since it is larger than the sum of its proper divisors (5406261).

7251915 is a wasteful number, since it uses less digits than its factorization.

7251915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43970.

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

The square root of 7251915 is about 2692.9379866607. The cubic root of 7251915 is about 193.5608712870.

The spelling of 7251915 in words is "seven million, two hundred fifty-one thousand, nine hundred fifteen".