107504521 has 4 divisors (see below), whose sum is σ = 107543700. Its totient is φ = 107465344.

The previous prime is 107504477. The next prime is 107504533. The reversal of 107504521 is 125405701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6702921 + 100801600 = 2589^2 + 10040^2 .

It is a cyclic number.

It is not a de Polignac number, because 107504521 - 2⁷ = 107504393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107504591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15136 + ... + 21073.

It is an arithmetic number, because the mean of its divisors is an integer number (26885925).

Almost surely, 2^107504521 is an apocalyptic number.

It is an amenable number.

107504521 is a deficient number, since it is larger than the sum of its proper divisors (39179).

107504521 is an equidigital number, since it uses as much as digits as its factorization.

107504521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39178.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 107504521 is about 10368.4386963515. The cubic root of 107504521 is about 475.4909361855.

The spelling of 107504521 in words is "one hundred seven million, five hundred four thousand, five hundred twenty-one".