22319961 has 8 divisors (see below), whose sum is σ = 30248064. Its totient is φ = 14635920.

The previous prime is 22319953. The next prime is 22319977. The reversal of 22319961 is 16991322.

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

It is not a de Polignac number, because 22319961 - 2³ = 22319953 is a prime.

It is a super-3 number, since 3×22319961³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22319981) 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, 60801 + ... + 61166.

It is an arithmetic number, because the mean of its divisors is an integer number (3781008).

Almost surely, 2^22319961 is an apocalyptic number.

It is an amenable number.

22319961 is a deficient number, since it is larger than the sum of its proper divisors (7928103).

22319961 is a wasteful number, since it uses less digits than its factorization.

22319961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122031.

The product of its digits is 5832, while the sum is 33.

The square root of 22319961 is about 4724.4005969012. The cubic root of 22319961 is about 281.5557993386. Note that the first 3 decimals are identical.

The spelling of 22319961 in words is "twenty-two million, three hundred nineteen thousand, nine hundred sixty-one".