105331521 has 8 divisors (see below), whose sum is σ = 144972544. Its totient is φ = 67955760.

The previous prime is 105331519. The next prime is 105331529. The reversal of 105331521 is 125133501.

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

It is not a de Polignac number, because 105331521 - 2¹ = 105331519 is a prime.

It is a super-2 number, since 2×105331521² = 22189458632346882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105331529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566206 + ... + 566391.

It is an arithmetic number, because the mean of its divisors is an integer number (18121568).

Almost surely, 2^105331521 is an apocalyptic number.

It is an amenable number.

105331521 is a deficient number, since it is larger than the sum of its proper divisors (39641023).

105331521 is a wasteful number, since it uses less digits than its factorization.

105331521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132631.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 105331521 is about 10263.1145857386. The cubic root of 105331521 is about 472.2653889725.

The spelling of 105331521 in words is "one hundred five million, three hundred thirty-one thousand, five hundred twenty-one".