154942243 has 2 divisors, whose sum is σ = 154942244. Its totient is φ = 154942242.

The previous prime is 154942231. The next prime is 154942253. The reversal of 154942243 is 342249451.

154942243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154942243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154942199 and 154942208.

It is not a weakly prime, because it can be changed into another prime (154942223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77471121 + 77471122.

It is an arithmetic number, because the mean of its divisors is an integer number (77471122).

Almost surely, 2^154942243 is an apocalyptic number.

154942243 is a deficient number, since it is larger than the sum of its proper divisors (1).

154942243 is an equidigital number, since it uses as much as digits as its factorization.

154942243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 154942243 is about 12447.5798049259. The cubic root of 154942243 is about 537.1018062525.

The spelling of 154942243 in words is "one hundred fifty-four million, nine hundred forty-two thousand, two hundred forty-three".