146442271 has 8 divisors (see below), whose sum is σ = 150045120. Its totient is φ = 142859808.

The previous prime is 146442217. The next prime is 146442281. The reversal of 146442271 is 172244641.

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 146442271 - 2⁷ = 146442143 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 (146442211) 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, 9985 + ... + 19813.

It is an arithmetic number, because the mean of its divisors is an integer number (18755640).

Almost surely, 2^146442271 is an apocalyptic number.

146442271 is a deficient number, since it is larger than the sum of its proper divisors (3602849).

146442271 is an equidigital number, since it uses as much as digits as its factorization.

146442271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193.

The product of its digits is 10752, while the sum is 31.

The square root of 146442271 is about 12101.3334389232. Note that the first 3 decimals coincide. The cubic root of 146442271 is about 527.0949051763.

The spelling of 146442271 in words is "one hundred forty-six million, four hundred forty-two thousand, two hundred seventy-one".