146442745 has 16 divisors (see below), whose sum is σ = 178749072. Its totient is φ = 115153920.

The previous prime is 146442739. The next prime is 146442757. The reversal of 146442745 is 547244641.

It can be written as a sum of positive squares in 8 ways, for example, as 26255376 + 120187369 = 5124^2 + 10963^2 .

It is not a de Polignac number, because 146442745 - 2⁷ = 146442617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153189 + ... + 154141.

It is an arithmetic number, because the mean of its divisors is an integer number (11171817).

Almost surely, 2^146442745 is an apocalyptic number.

It is an amenable number.

146442745 is a deficient number, since it is larger than the sum of its proper divisors (32306327).

146442745 is an equidigital number, since it uses as much as digits as its factorization.

146442745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452.

The product of its digits is 107520, while the sum is 37.

The square root of 146442745 is about 12101.3530235259. The cubic root of 146442745 is about 527.0954738707.

The spelling of 146442745 in words is "one hundred forty-six million, four hundred forty-two thousand, seven hundred forty-five".