146005745 has 4 divisors (see below), whose sum is σ = 175206900. Its totient is φ = 116804592.

The previous prime is 146005729. The next prime is 146005751. The reversal of 146005745 is 547500641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547500641 = 31 ⋅17661311.

It can be written as a sum of positive squares in 2 ways, for example, as 105657841 + 40347904 = 10279^2 + 6352^2 .

It is a cyclic number.

It is not a de Polignac number, because 146005745 - 2⁴ = 146005729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14600570 + ... + 14600579.

It is an arithmetic number, because the mean of its divisors is an integer number (43801725).

Almost surely, 2^146005745 is an apocalyptic number.

It is an amenable number.

146005745 is a deficient number, since it is larger than the sum of its proper divisors (29201155).

146005745 is an equidigital number, since it uses as much as digits as its factorization.

146005745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29201154.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 146005745 is about 12083.2837010475. The cubic root of 146005745 is about 526.5706493674.

The spelling of 146005745 in words is "one hundred forty-six million, five thousand, seven hundred forty-five".