10539121 has 4 divisors (see below), whose sum is σ = 10545652. Its totient is φ = 10532592.

The previous prime is 10539097. The next prime is 10539127. The reversal of 10539121 is 12193501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12193501 = 269 ⋅45329.

It can be written as a sum of positive squares in 2 ways, for example, as 5198400 + 5340721 = 2280^2 + 2311^2 .

It is a cyclic number.

It is not a de Polignac number, because 10539121 - 2¹¹ = 10537073 is a prime.

It is a super-2 number, since 2×10539121² = 222146142905282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10539092 and 10539101.

It is not an unprimeable number, because it can be changed into a prime (10539127) 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, 1111 + ... + 4723.

It is an arithmetic number, because the mean of its divisors is an integer number (2636413).

Almost surely, 2^10539121 is an apocalyptic number.

It is an amenable number.

10539121 is a deficient number, since it is larger than the sum of its proper divisors (6531).

10539121 is an equidigital number, since it uses as much as digits as its factorization.

10539121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6530.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 10539121 is about 3246.4012382945. The cubic root of 10539121 is about 219.2475741772.

The spelling of 10539121 in words is "ten million, five hundred thirty-nine thousand, one hundred twenty-one".