146390227 has 4 divisors (see below), whose sum is σ = 146430720. Its totient is φ = 146349736.

The previous prime is 146390221. The next prime is 146390249. The reversal of 146390227 is 722093641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722093641 = 22193 ⋅32537.

It is a cyclic number.

It is not a de Polignac number, because 146390227 - 2³ = 146390219 is a prime.

It is a super-2 number, since 2×146390227² = 42860197122223058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146390192 and 146390201.

It is not an unprimeable number, because it can be changed into a prime (146390221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14227 + ... + 22252.

It is an arithmetic number, because the mean of its divisors is an integer number (36607680).

Almost surely, 2^146390227 is an apocalyptic number.

146390227 is a deficient number, since it is larger than the sum of its proper divisors (40493).

146390227 is an equidigital number, since it uses as much as digits as its factorization.

146390227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40492.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 146390227 is about 12099.1829062958. The cubic root of 146390227 is about 527.0324565008.

The spelling of 146390227 in words is "one hundred forty-six million, three hundred ninety thousand, two hundred twenty-seven".