146279227 has 4 divisors (see below), whose sum is σ = 146678176. Its totient is φ = 145880280.

The previous prime is 146279179. The next prime is 146279239. The reversal of 146279227 is 722972641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146279227 - 2¹¹ = 146277179 is a prime.

It is a super-2 number, since 2×146279227² = 42795224503435058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146279227.

It is not an unprimeable number, because it can be changed into a prime (146279927) 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 3 ways as a sum of consecutive naturals, for example, 198924 + ... + 199657.

It is an arithmetic number, because the mean of its divisors is an integer number (36669544).

Almost surely, 2^146279227 is an apocalyptic number.

146279227 is a deficient number, since it is larger than the sum of its proper divisors (398949).

146279227 is an equidigital number, since it uses as much as digits as its factorization.

146279227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398948.

The product of its digits is 84672, while the sum is 40.

The square root of 146279227 is about 12094.5949498113. The cubic root of 146279227 is about 526.8992158328.

The spelling of 146279227 in words is "one hundred forty-six million, two hundred seventy-nine thousand, two hundred twenty-seven".