154422043 has 2 divisors, whose sum is σ = 154422044. Its totient is φ = 154422042.

The previous prime is 154422017. The next prime is 154422091. The reversal of 154422043 is 340224451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154422043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154421999 and 154422017.

It is not a weakly prime, because it can be changed into another prime (154420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77211021 + 77211022.

It is an arithmetic number, because the mean of its divisors is an integer number (77211022).

Almost surely, 2^154422043 is an apocalyptic number.

154422043 is a deficient number, since it is larger than the sum of its proper divisors (1).

154422043 is an equidigital number, since it uses as much as digits as its factorization.

154422043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 154422043 is about 12426.6666085479. Note that the first 4 decimals coincide. The cubic root of 154422043 is about 536.5000473366.

Adding to 154422043 its reverse (340224451), we get a palindrome (494646494).

The spelling of 154422043 in words is "one hundred fifty-four million, four hundred twenty-two thousand, forty-three".