107381521 has 8 divisors (see below), whose sum is σ = 121728320. Its totient is φ = 93904272.

The previous prime is 107381509. The next prime is 107381557. The reversal of 107381521 is 125183701.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107381521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 107381521.

It is not an unprimeable number, because it can be changed into a prime (107381581) 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 7 ways as a sum of consecutive naturals, for example, 217125 + ... + 217618.

It is an arithmetic number, because the mean of its divisors is an integer number (15216040).

Almost surely, 2^107381521 is an apocalyptic number.

It is an amenable number.

107381521 is a deficient number, since it is larger than the sum of its proper divisors (14346799).

107381521 is a wasteful number, since it uses less digits than its factorization.

107381521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434775.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 107381521 is about 10362.5055367898. The cubic root of 107381521 is about 475.3095245763.

The spelling of 107381521 in words is "one hundred seven million, three hundred eighty-one thousand, five hundred twenty-one".