146539789 has 8 divisors (see below), whose sum is σ = 161445600. Its totient is φ = 131898000.

The previous prime is 146539763. The next prime is 146539793. The reversal of 146539789 is 987935641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146539789 - 2²¹ = 144442637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146539189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64839 + ... + 67060.

It is an arithmetic number, because the mean of its divisors is an integer number (20180700).

Almost surely, 2^146539789 is an apocalyptic number.

It is an amenable number.

146539789 is a deficient number, since it is larger than the sum of its proper divisors (14905811).

146539789 is a wasteful number, since it uses less digits than its factorization.

146539789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132011.

The product of its digits is 1632960, while the sum is 52.

The square root of 146539789 is about 12105.3619937613. The cubic root of 146539789 is about 527.2118792239.

It can be divided in two parts, 14653 and 9789, that added together give a palindrome (24442).

The spelling of 146539789 in words is "one hundred forty-six million, five hundred thirty-nine thousand, seven hundred eighty-nine".