146142889 has 16 divisors (see below), whose sum is σ = 158371200. Its totient is φ = 134424576.

The previous prime is 146142817. The next prime is 146142907. The reversal of 146142889 is 988241641.

It is a cyclic number.

It is not a de Polignac number, because 146142889 - 2¹⁹ = 145618601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146142289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103017 + ... + 104425.

It is an arithmetic number, because the mean of its divisors is an integer number (9898200).

Almost surely, 2^146142889 is an apocalyptic number.

146142889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

146142889 is a deficient number, since it is larger than the sum of its proper divisors (12228311).

146142889 is a wasteful number, since it uses less digits than its factorization.

146142889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584.

The product of its digits is 110592, while the sum is 43.

The square root of 146142889 is about 12088.9573164934. The cubic root of 146142889 is about 526.7354680097.

The spelling of 146142889 in words is "one hundred forty-six million, one hundred forty-two thousand, eight hundred eighty-nine".