147231223 has 4 divisors (see below), whose sum is σ = 147256720. Its totient is φ = 147205728.

The previous prime is 147231197. The next prime is 147231241. The reversal of 147231223 is 322132741.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147231223 - 2⁹ = 147230711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147231523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511 + ... + 17167.

It is an arithmetic number, because the mean of its divisors is an integer number (36814180).

Almost surely, 2^147231223 is an apocalyptic number.

147231223 is a deficient number, since it is larger than the sum of its proper divisors (25497).

147231223 is an equidigital number, since it uses as much as digits as its factorization.

147231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25496.

The product of its digits is 2016, while the sum is 25.

The square root of 147231223 is about 12133.8873820388. The cubic root of 147231223 is about 528.0397781001.

Adding to 147231223 its reverse (322132741), we get a palindrome (469363964).

The spelling of 147231223 in words is "one hundred forty-seven million, two hundred thirty-one thousand, two hundred twenty-three".