154223243 has 2 divisors, whose sum is σ = 154223244. Its totient is φ = 154223242.

The previous prime is 154223221. The next prime is 154223261. The reversal of 154223243 is 342322451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154223243 - 2¹⁰ = 154222219 is a prime.

It is not a weakly prime, because it can be changed into another prime (154223143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77111621 + 77111622.

It is an arithmetic number, because the mean of its divisors is an integer number (77111622).

Almost surely, 2^154223243 is an apocalyptic number.

154223243 is a deficient number, since it is larger than the sum of its proper divisors (1).

154223243 is an equidigital number, since it uses as much as digits as its factorization.

154223243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 26.

The square root of 154223243 is about 12418.6651053968. The cubic root of 154223243 is about 536.2697218184.

Adding to 154223243 its reverse (342322451), we get a palindrome (496545694).

The spelling of 154223243 in words is "one hundred fifty-four million, two hundred twenty-three thousand, two hundred forty-three".