10543521 has 8 divisors (see below), whose sum is σ = 14084704. Its totient is φ = 7015680.

The previous prime is 10543487. The next prime is 10543523. The reversal of 10543521 is 12534501.

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

It is not a de Polignac number, because 10543521 - 2¹⁸ = 10281377 is a prime.

It is a super-2 number, since 2×10543521² = 222331670154882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10543523) 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, 1315 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (1760588).

Almost surely, 2^10543521 is an apocalyptic number.

It is an amenable number.

10543521 is a deficient number, since it is larger than the sum of its proper divisors (3541183).

10543521 is an equidigital number, since it uses as much as digits as its factorization.

10543521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6671.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 10543521 is about 3247.0788410508. The cubic root of 10543521 is about 219.2780813105.

The spelling of 10543521 in words is "ten million, five hundred forty-three thousand, five hundred twenty-one".