22136477 has 4 divisors (see below), whose sum is σ = 24148896. Its totient is φ = 20124060.

The previous prime is 22136459. The next prime is 22136479. The reversal of 22136477 is 77463122.

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 not a de Polignac number, because 22136477 - 2¹² = 22132381 is a prime.

It is a super-2 number, since 2×22136477² = 980047227943058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22136479) 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, 1006193 + ... + 1006214.

It is an arithmetic number, because the mean of its divisors is an integer number (6037224).

Almost surely, 2^22136477 is an apocalyptic number.

It is an amenable number.

22136477 is a deficient number, since it is larger than the sum of its proper divisors (2012419).

22136477 is a wasteful number, since it uses less digits than its factorization.

22136477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012418.

The product of its digits is 14112, while the sum is 32.

The square root of 22136477 is about 4704.9417637204. The cubic root of 22136477 is about 280.7821540770.

Adding to 22136477 its reverse (77463122), we get a palindrome (99599599).

The spelling of 22136477 in words is "twenty-two million, one hundred thirty-six thousand, four hundred seventy-seven".