146725189 has 8 divisors (see below), whose sum is σ = 159411672. Its totient is φ = 134238720.

The previous prime is 146725177. The next prime is 146725193. The reversal of 146725189 is 981527641.

It can be written as a sum of positive squares in 4 ways, for example, as 8850625 + 137874564 = 2975^2 + 11742^2 .

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 146725189 - 2⁵ = 146725157 is a prime.

It is a super-3 number, since 3×146725189³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146725169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48472 + ... + 51409.

It is an arithmetic number, because the mean of its divisors is an integer number (19926459).

Almost surely, 2^146725189 is an apocalyptic number.

It is an amenable number.

146725189 is a deficient number, since it is larger than the sum of its proper divisors (12686483).

146725189 is a wasteful number, since it uses less digits than its factorization.

146725189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100007.

The product of its digits is 120960, while the sum is 43.

The square root of 146725189 is about 12113.0173367332. The cubic root of 146725189 is about 527.4341257781.

The spelling of 146725189 in words is "one hundred forty-six million, seven hundred twenty-five thousand, one hundred eighty-nine".