7521045 has 32 divisors (see below), whose sum is σ = 13934592. Its totient is φ = 3392832.

The previous prime is 7521013. The next prime is 7521049. The reversal of 7521045 is 5401257.

7521045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7521045 - 2⁵ = 7521013 is a prime.

It is a super-2 number, since 2×7521045² = 113132235784050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7521049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8284 + ... + 9146.

It is an arithmetic number, because the mean of its divisors is an integer number (435456).

Almost surely, 2^7521045 is an apocalyptic number.

It is an amenable number.

7521045 is a deficient number, since it is larger than the sum of its proper divisors (6413547).

7521045 is a wasteful number, since it uses less digits than its factorization.

7521045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 7521045 is about 2742.4523696867. The cubic root of 7521045 is about 195.9262963891.

The spelling of 7521045 in words is "seven million, five hundred twenty-one thousand, forty-five".