105528621 has 8 divisors (see below), whose sum is σ = 153496224. Its totient is φ = 63956720.

The previous prime is 105528613. The next prime is 105528653. The reversal of 105528621 is 126825501.

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

It is a cyclic number.

It is not a de Polignac number, because 105528621 - 2³ = 105528613 is a prime.

It is a super-2 number, since 2×105528621² = 22272579700323282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105528601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598886 + ... + 1598951.

It is an arithmetic number, because the mean of its divisors is an integer number (19187028).

Almost surely, 2^105528621 is an apocalyptic number.

105528621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105528621 is a deficient number, since it is larger than the sum of its proper divisors (47967603).

105528621 is a wasteful number, since it uses less digits than its factorization.

105528621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197851.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 105528621 is about 10272.7124460874. The cubic root of 105528621 is about 472.5597785570.

The spelling of 105528621 in words is "one hundred five million, five hundred twenty-eight thousand, six hundred twenty-one".