22148481 has 8 divisors (see below), whose sum is σ = 29594880. Its totient is φ = 14733872.

The previous prime is 22148479. The next prime is 22148543. The reversal of 22148481 is 18484122.

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

It is a cyclic number.

It is not a de Polignac number, because 22148481 - 2¹ = 22148479 is a prime.

It is a super-2 number, since 2×22148481² = 981110421214722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22148411) 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, 6270 + ... + 9143.

It is an arithmetic number, because the mean of its divisors is an integer number (3699360).

Almost surely, 2^22148481 is an apocalyptic number.

It is an amenable number.

22148481 is a deficient number, since it is larger than the sum of its proper divisors (7446399).

22148481 is a wasteful number, since it uses less digits than its factorization.

22148481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15895.

The product of its digits is 4096, while the sum is 30.

The square root of 22148481 is about 4706.2172708025. The cubic root of 22148481 is about 280.8328983744.

The spelling of 22148481 in words is "twenty-two million, one hundred forty-eight thousand, four hundred eighty-one".