146528961 has 4 divisors (see below), whose sum is σ = 195371952. Its totient is φ = 97685972.

The previous prime is 146528959. The next prime is 146528989. The reversal of 146528961 is 169825641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 169825641 = 3 ⋅56608547.

It is a cyclic number.

It is not a de Polignac number, because 146528961 - 2¹ = 146528959 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146528911) 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, 24421491 + ... + 24421496.

It is an arithmetic number, because the mean of its divisors is an integer number (48842988).

Almost surely, 2^146528961 is an apocalyptic number.

It is an amenable number.

146528961 is a deficient number, since it is larger than the sum of its proper divisors (48842991).

146528961 is an equidigital number, since it uses as much as digits as its factorization.

146528961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48842990.

The product of its digits is 103680, while the sum is 42.

The square root of 146528961 is about 12104.9147456725. The cubic root of 146528961 is about 527.1988934657.

The spelling of 146528961 in words is "one hundred forty-six million, five hundred twenty-eight thousand, nine hundred sixty-one".