22254961 has 4 divisors (see below), whose sum is σ = 23222592. Its totient is φ = 21287332.

The previous prime is 22254959. The next prime is 22254971. The reversal of 22254961 is 16945222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22254961 - 2¹ = 22254959 is a prime.

It is a super-2 number, since 2×22254961² = 990566578223042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22254971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483781 + ... + 483826.

It is an arithmetic number, because the mean of its divisors is an integer number (5805648).

Almost surely, 2^22254961 is an apocalyptic number.

It is an amenable number.

22254961 is a deficient number, since it is larger than the sum of its proper divisors (967631).

22254961 is an equidigital number, since it uses as much as digits as its factorization.

22254961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967630.

The product of its digits is 8640, while the sum is 31.

The square root of 22254961 is about 4717.5164016673. The cubic root of 22254961 is about 281.2822187946.

The spelling of 22254961 in words is "twenty-two million, two hundred fifty-four thousand, nine hundred sixty-one".