146446521 has 16 divisors (see below), whose sum is σ = 210673344. Its totient is φ = 89953344.

The previous prime is 146446507. The next prime is 146446571. The reversal of 146446521 is 125644641.

146446521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 146446521 - 2²⁵ = 112892089 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (146446571) 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, 19695 + ... + 26091.

It is an arithmetic number, because the mean of its divisors is an integer number (13167084).

Almost surely, 2^146446521 is an apocalyptic number.

It is an amenable number.

146446521 is a deficient number, since it is larger than the sum of its proper divisors (64226823).

146446521 is a wasteful number, since it uses less digits than its factorization.

146446521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000.

The product of its digits is 23040, while the sum is 33.

The square root of 146446521 is about 12101.5090381324. The cubic root of 146446521 is about 527.1000041859.

The spelling of 146446521 in words is "one hundred forty-six million, four hundred forty-six thousand, five hundred twenty-one".