154552291 has 2 divisors, whose sum is σ = 154552292. Its totient is φ = 154552290.

The previous prime is 154552273. The next prime is 154552301. The reversal of 154552291 is 192255451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154552291 - 2⁷ = 154552163 is a prime.

It is not a weakly prime, because it can be changed into another prime (154552271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77276145 + 77276146.

It is an arithmetic number, because the mean of its divisors is an integer number (77276146).

Almost surely, 2^154552291 is an apocalyptic number.

154552291 is a deficient number, since it is larger than the sum of its proper divisors (1).

154552291 is an equidigital number, since it uses as much as digits as its factorization.

154552291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 34.

The square root of 154552291 is about 12431.9061692083. The cubic root of 154552291 is about 536.6508427794.

The spelling of 154552291 in words is "one hundred fifty-four million, five hundred fifty-two thousand, two hundred ninety-one".