22145351 has 8 divisors (see below), whose sum is σ = 22809120. Its totient is φ = 21485088.

The previous prime is 22145327. The next prime is 22145363. The reversal of 22145351 is 15354122.

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

It is a cyclic number.

It is not a de Polignac number, because 22145351 - 2⁶ = 22145287 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 (22145311) 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 7 ways as a sum of consecutive naturals, for example, 17405 + ... + 18633.

It is an arithmetic number, because the mean of its divisors is an integer number (2851140).

Almost surely, 2^22145351 is an apocalyptic number.

22145351 is a deficient number, since it is larger than the sum of its proper divisors (663769).

22145351 is a wasteful number, since it uses less digits than its factorization.

22145351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753.

The product of its digits is 1200, while the sum is 23.

The square root of 22145351 is about 4705.8847202200. The cubic root of 22145351 is about 280.8196687480.

Adding to 22145351 its reverse (15354122), we get a palindrome (37499473).

The spelling of 22145351 in words is "twenty-two million, one hundred forty-five thousand, three hundred fifty-one".