22151841 has 8 divisors (see below), whose sum is σ = 29562240. Its totient is φ = 14754672.

The previous prime is 22151819. The next prime is 22151869. The reversal of 22151841 is 14815122.

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

It is not a de Polignac number, because 22151841 - 2⁷ = 22151713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22155841) 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, 1675 + ... + 6863.

It is an arithmetic number, because the mean of its divisors is an integer number (3695280).

Almost surely, 2^22151841 is an apocalyptic number.

It is an amenable number.

22151841 is a deficient number, since it is larger than the sum of its proper divisors (7410399).

22151841 is a wasteful number, since it uses less digits than its factorization.

22151841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615.

The product of its digits is 640, while the sum is 24.

The square root of 22151841 is about 4706.5742318591. The cubic root of 22151841 is about 280.8470987587.

Adding to 22151841 its reverse (14815122), we get a palindrome (36966963).

The spelling of 22151841 in words is "twenty-two million, one hundred fifty-one thousand, eight hundred forty-one".