146665441 has 16 divisors (see below), whose sum is σ = 163920960. Its totient is φ = 130294080.

The previous prime is 146665403. The next prime is 146665459. The reversal of 146665441 is 144566641.

It is a cyclic number.

It is not a de Polignac number, because 146665441 - 2¹¹ = 146663393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146665441.

It is not an unprimeable number, because it can be changed into a prime (146663441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211906 + ... + 212596.

It is an arithmetic number, because the mean of its divisors is an integer number (10245060).

Almost surely, 2^146665441 is an apocalyptic number.

It is an amenable number.

146665441 is a deficient number, since it is larger than the sum of its proper divisors (17255519).

146665441 is a wasteful number, since it uses less digits than its factorization.

146665441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its digits is 69120, while the sum is 37.

The square root of 146665441 is about 12110.5508132372. The cubic root of 146665441 is about 527.3625238653.

The spelling of 146665441 in words is "one hundred forty-six million, six hundred sixty-five thousand, four hundred forty-one".