146005889 has 4 divisors (see below), whose sum is σ = 146030340. Its totient is φ = 145981440.

The previous prime is 146005883. The next prime is 146005897. The reversal of 146005889 is 988500641.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 59367025 + 86638864 = 7705^2 + 9308^2 .

It is a cyclic number.

It is not a de Polignac number, because 146005889 - 2²⁰ = 144957313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146005883) 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, 3329 + ... + 17409.

It is an arithmetic number, because the mean of its divisors is an integer number (36507585).

Almost surely, 2^146005889 is an apocalyptic number.

It is an amenable number.

146005889 is a deficient number, since it is larger than the sum of its proper divisors (24451).

146005889 is a wasteful number, since it uses less digits than its factorization.

146005889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24450.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 146005889 is about 12083.2896596912. The cubic root of 146005889 is about 526.5708224797.

The spelling of 146005889 in words is "one hundred forty-six million, five thousand, eight hundred eighty-nine".