146189143 has 8 divisors (see below), whose sum is σ = 148496688. Its totient is φ = 143889984.

The previous prime is 146189119. The next prime is 146189159. The reversal of 146189143 is 341981641.

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 146189143 - 2⁵ = 146189111 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 (146180143) 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, 39321 + ... + 42877.

It is an arithmetic number, because the mean of its divisors is an integer number (18562086).

Almost surely, 2^146189143 is an apocalyptic number.

146189143 is a deficient number, since it is larger than the sum of its proper divisors (2307545).

146189143 is an equidigital number, since it uses as much as digits as its factorization.

146189143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193.

The product of its digits is 20736, while the sum is 37.

The square root of 146189143 is about 12090.8702333620. The cubic root of 146189143 is about 526.7910324704.

The spelling of 146189143 in words is "one hundred forty-six million, one hundred eighty-nine thousand, one hundred forty-three".