7521106 has 8 divisors (see below), whose sum is σ = 11945340. Its totient is φ = 3539328.

The previous prime is 7521079. The next prime is 7521113. The reversal of 7521106 is 6011257.

It can be written as a sum of positive squares in 2 ways, for example, as 7425625 + 95481 = 2725^2 + 309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110571 + ... + 110638.

Almost surely, 2^7521106 is an apocalyptic number.

7521106 is a deficient number, since it is larger than the sum of its proper divisors (4424234).

7521106 is a wasteful number, since it uses less digits than its factorization.

7521106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221228.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 7521106 is about 2742.4634910970. The cubic root of 7521106 is about 195.9268260793.

The spelling of 7521106 in words is "seven million, five hundred twenty-one thousand, one hundred six".