67146489 has 12 divisors (see below), whose sum is σ = 100581936. Its totient is φ = 44764164.

The previous prime is 67146473. The next prime is 67146491. The reversal of 67146489 is 98464176.

It is not a de Polignac number, because 67146489 - 2⁴ = 67146473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67146439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137919 + ... + 138404.

It is an arithmetic number, because the mean of its divisors is an integer number (8381828).

Almost surely, 2^67146489 is an apocalyptic number.

It is an amenable number.

67146489 is a deficient number, since it is larger than the sum of its proper divisors (33435447).

67146489 is an equidigital number, since it uses as much as digits as its factorization.

67146489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276338 (or 276326 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 67146489 is about 8194.2961259647. The cubic root of 67146489 is about 406.4506006064.

It can be divided in two parts, 6714 and 6489, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 67146489 in words is "sixty-seven million, one hundred forty-six thousand, four hundred eighty-nine".