146122189 has 16 divisors (see below), whose sum is σ = 154192896. Its totient is φ = 138297600.

The previous prime is 146122187. The next prime is 146122241. The reversal of 146122189 is 981221641.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 146122189 - 2¹ = 146122187 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 (146122181) 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, 433429 + ... + 433765.

It is an arithmetic number, because the mean of its divisors is an integer number (9637056).

Almost surely, 2^146122189 is an apocalyptic number.

It is an amenable number.

146122189 is a deficient number, since it is larger than the sum of its proper divisors (8070707).

146122189 is a wasteful number, since it uses less digits than its factorization.

146122189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its digits is 6912, while the sum is 34.

The square root of 146122189 is about 12088.1011329323. The cubic root of 146122189 is about 526.7105975123.

The spelling of 146122189 in words is "one hundred forty-six million, one hundred twenty-two thousand, one hundred eighty-nine".