154242427 has 2 divisors, whose sum is σ = 154242428. Its totient is φ = 154242426.

The previous prime is 154242383. The next prime is 154242449. The reversal of 154242427 is 724242451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154242427 - 2⁷ = 154242299 is a prime.

It is not a weakly prime, because it can be changed into another prime (154242457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77121213 + 77121214.

It is an arithmetic number, because the mean of its divisors is an integer number (77121214).

Almost surely, 2^154242427 is an apocalyptic number.

154242427 is a deficient number, since it is larger than the sum of its proper divisors (1).

154242427 is an equidigital number, since it uses as much as digits as its factorization.

154242427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 31.

The square root of 154242427 is about 12419.4374671319. The cubic root of 154242427 is about 536.2919566247.

Adding to 154242427 its reverse (724242451), we get a palindrome (878484878).

It can be divided in two parts, 1542424 and 27, that added together give a palindrome (1542451).

The spelling of 154242427 in words is "one hundred fifty-four million, two hundred forty-two thousand, four hundred twenty-seven".