22151141 has 4 divisors (see below), whose sum is σ = 22161984. Its totient is φ = 22140300.

The previous prime is 22151117. The next prime is 22151159. The reversal of 22151141 is 14115122.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22151141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325 + ... + 6786.

It is an arithmetic number, because the mean of its divisors is an integer number (5540496).

Almost surely, 2^22151141 is an apocalyptic number.

It is an amenable number.

22151141 is a deficient number, since it is larger than the sum of its proper divisors (10843).

22151141 is an equidigital number, since it uses as much as digits as its factorization.

22151141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842.

The product of its digits is 80, while the sum is 17.

The square root of 22151141 is about 4706.4998672049. The cubic root of 22151141 is about 280.8441404637.

Adding to 22151141 its reverse (14115122), we get a palindrome (36266263).

The spelling of 22151141 in words is "twenty-two million, one hundred fifty-one thousand, one hundred forty-one".