154243 has 2 divisors, whose sum is σ = 154244. Its totient is φ = 154242.

The previous prime is 154229. The next prime is 154247. The reversal of 154243 is 342451.

It is a strong prime.

It is an emirp because it is prime and its reverse (342451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154243 - 2⁵ = 154211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154243.

It is not a weakly prime, because it can be changed into another prime (154247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77121 + 77122.

It is an arithmetic number, because the mean of its divisors is an integer number (77122).

2¹⁵⁴²⁴³ is an apocalyptic number.

154243 is a deficient number, since it is larger than the sum of its proper divisors (1).

154243 is an equidigital number, since it uses as much as digits as its factorization.

154243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 19.

The square root of 154243 is about 392.7378260367. The cubic root of 154243 is about 53.6292620720.

Adding to 154243 its reverse (342451), we get a palindrome (496694).

The spelling of 154243 in words is "one hundred fifty-four thousand, two hundred forty-three".