154500223 has 4 divisors (see below), whose sum is σ = 161217648. Its totient is φ = 147782800.

The previous prime is 154500179. The next prime is 154500239. The reversal of 154500223 is 322005451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154500223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154500194 and 154500203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154500253) 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, 3358678 + ... + 3358723.

It is an arithmetic number, because the mean of its divisors is an integer number (40304412).

Almost surely, 2^154500223 is an apocalyptic number.

154500223 is a deficient number, since it is larger than the sum of its proper divisors (6717425).

154500223 is an equidigital number, since it uses as much as digits as its factorization.

154500223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717424.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 154500223 is about 12429.8118650284. The cubic root of 154500223 is about 536.5905708926.

Adding to 154500223 its reverse (322005451), we get a palindrome (476505674).

The spelling of 154500223 in words is "one hundred fifty-four million, five hundred thousand, two hundred twenty-three".