22161463 has 2 divisors, whose sum is σ = 22161464. Its totient is φ = 22161462.

The previous prime is 22161449. The next prime is 22161479. The reversal of 22161463 is 36416122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22161463 - 2⁵ = 22161431 is a prime.

It is a super-2 number, since 2×22161463² = 982260884600738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22161563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11080731 + 11080732.

It is an arithmetic number, because the mean of its divisors is an integer number (11080732).

Almost surely, 2^22161463 is an apocalyptic number.

22161463 is a deficient number, since it is larger than the sum of its proper divisors (1).

22161463 is an equidigital number, since it uses as much as digits as its factorization.

22161463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 22161463 is about 4707.5963080961. The cubic root of 22161463 is about 280.8877563217.

Adding to 22161463 its reverse (36416122), we get a palindrome (58577585).

The spelling of 22161463 in words is "twenty-two million, one hundred sixty-one thousand, four hundred sixty-three".