22151943 has 12 divisors (see below), whose sum is σ = 34906248. Its totient is φ = 13425360.

The previous prime is 22151939. The next prime is 22151947. The reversal of 22151943 is 34915122.

It is an interprime number because it is at equal distance from previous prime (22151939) and next prime (22151947).

It is not a de Polignac number, because 22151943 - 2² = 22151939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111780 + ... + 111977.

It is an arithmetic number, because the mean of its divisors is an integer number (2908854).

Almost surely, 2^22151943 is an apocalyptic number.

22151943 is a deficient number, since it is larger than the sum of its proper divisors (12754305).

22151943 is a wasteful number, since it uses less digits than its factorization.

22151943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223774 (or 223771 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 22151943 is about 4706.5850677535. The cubic root of 22151943 is about 280.8475298193.

The spelling of 22151943 in words is "twenty-two million, one hundred fifty-one thousand, nine hundred forty-three".