146215233 has 8 divisors (see below), whose sum is σ = 216615200. Its totient is φ = 97476804.

The previous prime is 146215213. The next prime is 146215297. The reversal of 146215233 is 332512641.

146215233 is a `hidden beast` number, since 1 + 4 + 621 + 5 + 2 + 33 = 666.

It is not a de Polignac number, because 146215233 - 2⁹ = 146214721 is a prime.

It is a super-2 number, since 2×146215233² = 42757788722488578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5415379 = 146215233 / (1 + 4 + 6 + 2 + 1 + 5 + 2 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146215197 and 146215206.

It is not an unprimeable number, because it can be changed into a prime (146215213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2707663 + ... + 2707716.

It is an arithmetic number, because the mean of its divisors is an integer number (27076900).

Almost surely, 2^146215233 is an apocalyptic number.

It is an amenable number.

146215233 is a deficient number, since it is larger than the sum of its proper divisors (70399967).

146215233 is an equidigital number, since it uses as much as digits as its factorization.

146215233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415388 (or 5415382 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 146215233 is about 12091.9490984704. The cubic root of 146215233 is about 526.8223689528.

Adding to 146215233 its reverse (332512641), we get a palindrome (478727874).

The spelling of 146215233 in words is "one hundred forty-six million, two hundred fifteen thousand, two hundred thirty-three".