146222271 has 24 divisors (see below), whose sum is σ = 239431920. Its totient is φ = 85245696.

The previous prime is 146222269. The next prime is 146222281. The reversal of 146222271 is 172222641.

146222271 is a `hidden beast` number, since 14 + 622 + 2 + 27 + 1 = 666.

It is not a de Polignac number, because 146222271 - 2¹ = 146222269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146222221) 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 23 ways as a sum of consecutive naturals, for example, 30666 + ... + 35111.

It is an arithmetic number, because the mean of its divisors is an integer number (9976330).

Almost surely, 2^146222271 is an apocalyptic number.

146222271 is a deficient number, since it is larger than the sum of its proper divisors (93209649).

146222271 is a wasteful number, since it uses less digits than its factorization.

146222271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65815 (or 65812 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 146222271 is about 12092.2401150490. The cubic root of 146222271 is about 526.8308215977.

The spelling of 146222271 in words is "one hundred forty-six million, two hundred twenty-two thousand, two hundred seventy-one".