146286489 has 16 divisors (see below), whose sum is σ = 202567680. Its totient is φ = 93803280.

The previous prime is 146286461. The next prime is 146286499. The reversal of 146286489 is 984682641.

It is not a de Polignac number, because 146286489 - 2⁵ = 146286457 is a prime.

It is a super-4 number, since 4×146286489⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (146286409) 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 15 ways as a sum of consecutive naturals, for example, 10822 + ... + 20240.

It is an arithmetic number, because the mean of its divisors is an integer number (12660480).

Almost surely, 2^146286489 is an apocalyptic number.

It is an amenable number.

146286489 is a deficient number, since it is larger than the sum of its proper divisors (56281191).

146286489 is a wasteful number, since it uses less digits than its factorization.

146286489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9620.

The product of its digits is 663552, while the sum is 48.

The square root of 146286489 is about 12094.8951628363. The cubic root of 146286489 is about 526.9079349537.

The spelling of 146286489 in words is "one hundred forty-six million, two hundred eighty-six thousand, four hundred eighty-nine".