145224204 has 12 divisors (see below), whose sum is σ = 338856504. Its totient is φ = 48408064.

The previous prime is 145224179. The next prime is 145224253. The reversal of 145224204 is 402422541.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6050997 + ... + 6051020.

It is an arithmetic number, because the mean of its divisors is an integer number (28238042).

Almost surely, 2^145224204 is an apocalyptic number.

It is an amenable number.

145224204 is an abundant number, since it is smaller than the sum of its proper divisors (193632300).

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

145224204 is a wasteful number, since it uses less digits than its factorization.

145224204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12102024 (or 12102022 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 145224204 is about 12050.9005472620. The cubic root of 145224204 is about 525.6294237656.

Adding to 145224204 its reverse (402422541), we get a palindrome (547646745).

The spelling of 145224204 in words is "one hundred forty-five million, two hundred twenty-four thousand, two hundred four".