146421233 has 8 divisors (see below), whose sum is σ = 167597760. Its totient is φ = 125309520.

The previous prime is 146421193. The next prime is 146421269. The reversal of 146421233 is 332124641.

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

It is not a de Polignac number, because 146421233 - 2⁶ = 146421169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146421293) 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, 11258 + ... + 20483.

It is an arithmetic number, because the mean of its divisors is an integer number (20949720).

Almost surely, 2^146421233 is an apocalyptic number.

It is an amenable number.

146421233 is a deficient number, since it is larger than the sum of its proper divisors (21176527).

146421233 is an equidigital number, since it uses as much as digits as its factorization.

146421233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32407.

The product of its digits is 3456, while the sum is 26.

The square root of 146421233 is about 12100.4641646509. The cubic root of 146421233 is about 527.0696630254.

Adding to 146421233 its reverse (332124641), we get a palindrome (478545874).

The spelling of 146421233 in words is "one hundred forty-six million, four hundred twenty-one thousand, two hundred thirty-three".