154213223 has 2 divisors, whose sum is σ = 154213224. Its totient is φ = 154213222.

The previous prime is 154213217. The next prime is 154213243. The reversal of 154213223 is 322312451.

154213223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154213223 - 2¹² = 154209127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154213243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77106611 + 77106612.

It is an arithmetic number, because the mean of its divisors is an integer number (77106612).

Almost surely, 2^154213223 is an apocalyptic number.

154213223 is a deficient number, since it is larger than the sum of its proper divisors (1).

154213223 is an equidigital number, since it uses as much as digits as its factorization.

154213223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 154213223 is about 12418.2616738415. The cubic root of 154213223 is about 536.2581076179.

Adding to 154213223 its reverse (322312451), we get a palindrome (476525674).

The spelling of 154213223 in words is "one hundred fifty-four million, two hundred thirteen thousand, two hundred twenty-three".