423220153 has 4 divisors (see below), whose sum is σ = 436872448. Its totient is φ = 409567860.

The previous prime is 423220141. The next prime is 423220177. The reversal of 423220153 is 351022324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423220153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423220183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6826101 + ... + 6826162.

It is an arithmetic number, because the mean of its divisors is an integer number (109218112).

Almost surely, 2^423220153 is an apocalyptic number.

It is an amenable number.

423220153 is a deficient number, since it is larger than the sum of its proper divisors (13652295).

423220153 is a wasteful number, since it uses less digits than its factorization.

423220153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13652294.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 423220153 is about 20572.3152075793. The cubic root of 423220153 is about 750.7962819845.

Adding to 423220153 its reverse (351022324), we get a palindrome (774242477).

The spelling of 423220153 in words is "four hundred twenty-three million, two hundred twenty thousand, one hundred fifty-three".