146442145 has 8 divisors (see below), whose sum is σ = 176236200. Its totient is φ = 116816640.

The previous prime is 146442143. The next prime is 146442193. The reversal of 146442145 is 541244641.

It can be written as a sum of positive squares in 4 ways, for example, as 70543201 + 75898944 = 8399^2 + 8712^2 .

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

It is not a de Polignac number, because 146442145 - 2¹ = 146442143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146442143) 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, 40216 + ... + 43705.

It is an arithmetic number, because the mean of its divisors is an integer number (22029525).

Almost surely, 2^146442145 is an apocalyptic number.

It is an amenable number.

146442145 is a deficient number, since it is larger than the sum of its proper divisors (29794055).

146442145 is an equidigital number, since it uses as much as digits as its factorization.

146442145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84275.

The product of its digits is 15360, while the sum is 31.

The square root of 146442145 is about 12101.3282328842. The cubic root of 146442145 is about 527.0947540041.

Adding to 146442145 its reverse (541244641), we get a palindrome (687686786).

The spelling of 146442145 in words is "one hundred forty-six million, four hundred forty-two thousand, one hundred forty-five".