146223012 has 48 divisors (see below), whose sum is σ = 386778560. Its totient is φ = 42622848.

The previous prime is 146222981. The next prime is 146223013. The reversal of 146223012 is 210322641.

It is a self number, because there is not a number n which added to its sum of digits gives 146223012.

It is not an unprimeable number, because it can be changed into a prime (146223013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21703 + ... + 27630.

Almost surely, 2^146223012 is an apocalyptic number.

146223012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

146223012 is an abundant number, since it is smaller than the sum of its proper divisors (240555548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146223012 is a wasteful number, since it uses less digits than its factorization.

146223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49372 (or 49370 counting only the distinct ones).

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

The square root of 146223012 is about 12092.2707544944. The cubic root of 146223012 is about 526.8317115236.

Adding to 146223012 its reverse (210322641), we get a palindrome (356545653).

The spelling of 146223012 in words is "one hundred forty-six million, two hundred twenty-three thousand, twelve".