22085541 has 12 divisors (see below), whose sum is σ = 33083232. Its totient is φ = 14723532.

The previous prime is 22085537. The next prime is 22085551. The reversal of 22085541 is 14558022.

It is a happy number.

It is not a de Polignac number, because 22085541 - 2² = 22085537 is a prime.

It is a super-2 number, since 2×22085541² = 975542242525362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22085551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45201 + ... + 45686.

It is an arithmetic number, because the mean of its divisors is an integer number (2756936).

Almost surely, 2^22085541 is an apocalyptic number.

It is an amenable number.

22085541 is a deficient number, since it is larger than the sum of its proper divisors (10997691).

22085541 is an frugal number, since it uses more digits than its factorization.

22085541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90902 (or 90890 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 22085541 is about 4699.5256143573. The cubic root of 22085541 is about 280.5666289145.

The spelling of 22085541 in words is "twenty-two million, eighty-five thousand, five hundred forty-one".