147819223 has 4 divisors (see below), whose sum is σ = 147864640. Its totient is φ = 147773808.

The previous prime is 147819211. The next prime is 147819239. The reversal of 147819223 is 322918741.

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 147819223 - 2⁹ = 147818711 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 (147819283) 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, 17415 + ... + 24472.

It is an arithmetic number, because the mean of its divisors is an integer number (36966160).

Almost surely, 2^147819223 is an apocalyptic number.

147819223 is a deficient number, since it is larger than the sum of its proper divisors (45417).

147819223 is an equidigital number, since it uses as much as digits as its factorization.

147819223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45416.

The product of its digits is 24192, while the sum is 37.

The square root of 147819223 is about 12158.0929014381. The cubic root of 147819223 is about 528.7417917192.

The spelling of 147819223 in words is "one hundred forty-seven million, eight hundred nineteen thousand, two hundred twenty-three".