154653391 has 2 divisors, whose sum is σ = 154653392. Its totient is φ = 154653390.

The previous prime is 154653379. The next prime is 154653397. The reversal of 154653391 is 193356451.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 154653391 - 2⁷ = 154653263 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154653391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154653397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77326695 + 77326696.

It is an arithmetic number, because the mean of its divisors is an integer number (77326696).

Almost surely, 2^154653391 is an apocalyptic number.

154653391 is a deficient number, since it is larger than the sum of its proper divisors (1).

154653391 is an equidigital number, since it uses as much as digits as its factorization.

154653391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The square root of 154653391 is about 12435.9716548406. The cubic root of 154653391 is about 536.7678335484.

The spelling of 154653391 in words is "one hundred fifty-four million, six hundred fifty-three thousand, three hundred ninety-one".