146860889 has 12 divisors (see below), whose sum is σ = 173182644. Its totient is φ = 124153344.

The previous prime is 146860877. The next prime is 146860897. The reversal of 146860889 is 988068641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44689225 + 102171664 = 6685^2 + 10108^2 .

It is not a de Polignac number, because 146860889 - 2¹⁶ = 146795353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146800889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16952 + ... + 24105.

It is an arithmetic number, because the mean of its divisors is an integer number (14431887).

Almost surely, 2^146860889 is an apocalyptic number.

It is an amenable number.

146860889 is a deficient number, since it is larger than the sum of its proper divisors (26321755).

146860889 is an equidigital number, since it uses as much as digits as its factorization.

146860889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41144 (or 41137 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 146860889 is about 12118.6174541488. The cubic root of 146860889 is about 527.5966762754.

The spelling of 146860889 in words is "one hundred forty-six million, eight hundred sixty thousand, eight hundred eighty-nine".