146012143 has 4 divisors (see below), whose sum is σ = 146327968. Its totient is φ = 145696320.

The previous prime is 146012117. The next prime is 146012171. The reversal of 146012143 is 341210641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146012143 - 2⁹ = 146011631 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 (146012443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157218 + ... + 158143.

It is an arithmetic number, because the mean of its divisors is an integer number (36581992).

Almost surely, 2^146012143 is an apocalyptic number.

146012143 is a deficient number, since it is larger than the sum of its proper divisors (315825).

146012143 is an equidigital number, since it uses as much as digits as its factorization.

146012143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315824.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 146012143 is about 12083.5484440623. The cubic root of 146012143 is about 526.5783407310.

Adding to 146012143 its reverse (341210641), we get a palindrome (487222784).

The spelling of 146012143 in words is "one hundred forty-six million, twelve thousand, one hundred forty-three".