146043021 has 8 divisors (see below), whose sum is σ = 195125824. Its totient is φ = 97161120.

The previous prime is 146043011. The next prime is 146043041. The reversal of 146043021 is 120340641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 146043021 - 2¹⁵ = 146010253 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 (146043011) 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, 48520 + ... + 51441.

It is an arithmetic number, because the mean of its divisors is an integer number (24390728).

Almost surely, 2^146043021 is an apocalyptic number.

It is an amenable number.

146043021 is a deficient number, since it is larger than the sum of its proper divisors (49082803).

146043021 is an equidigital number, since it uses as much as digits as its factorization.

146043021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100451.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 146043021 is about 12084.8260641186. The cubic root of 146043021 is about 526.6154575982.

Adding to 146043021 its reverse (120340641), we get a palindrome (266383662).

The spelling of 146043021 in words is "one hundred forty-six million, forty-three thousand, twenty-one".