9541921 has 3 divisors (see below), whose sum is σ = 9545011. Its totient is φ = 9538832.

The previous prime is 9541919. The next prime is 9541927. The reversal of 9541921 is 1291459.

The square root of 9541921 is 3089.

It is a perfect power (a square), and thus also a powerful number.

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.

It can be written as a sum of positive squares in only one way, i.e., 8767521 + 774400 = 2961^2 + 880^2 .

It is not a de Polignac number, because 9541921 - 2¹ = 9541919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9541927) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1545 + ... + 4633.

Almost surely, 2^9541921 is an apocalyptic number.

9541921 is the 3089-th square number.

9541921 is the 1545-th centered octagonal number.

It is an amenable number.

9541921 is a deficient number, since it is larger than the sum of its proper divisors (3090).

9541921 is an frugal number, since it uses more digits than its factorization.

9541921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6178 (or 3089 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The cubic root of 9541921 is about 212.1022483515.

The spelling of 9541921 in words is "nine million, five hundred forty-one thousand, nine hundred twenty-one".