41100921 has 9 divisors (see below), whose sum is σ = 59395791. Its totient is φ = 27387792.

The previous prime is 41100911. The next prime is 41100953. The reversal of 41100921 is 12900114.

The square root of 41100921 is 6411.

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

It can be written as a sum of positive squares in only one way, i.e., 1863225 + 39237696 = 1365^2 + 6264^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 41100921 - 2¹³ = 41092729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41100894 and 41100903.

It is not an unprimeable number, because it can be changed into a prime (41100911) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18165 + ... + 20301.

Almost surely, 2^41100921 is an apocalyptic number.

41100921 is the 6411-st square number.

41100921 is the 3206-th centered octagonal number.

It is an amenable number.

41100921 is a deficient number, since it is larger than the sum of its proper divisors (18294870).

41100921 is an frugal number, since it uses more digits than its factorization.

41100921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The cubic root of 41100921 is about 345.1044170394.

The spelling of 41100921 in words is "forty-one million, one hundred thousand, nine hundred twenty-one".