154163389 has 2 divisors, whose sum is σ = 154163390. Its totient is φ = 154163388.

The previous prime is 154163381. The next prime is 154163413. The reversal of 154163389 is 983361451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142205625 + 11957764 = 11925^2 + 3458^2 .

It is an emirp because it is prime and its reverse (983361451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154163389 - 2³ = 154163381 is a prime.

It is equal to p_8665177 and since 154163389 and 8665177 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154163381) 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, 77081694 + 77081695.

It is an arithmetic number, because the mean of its divisors is an integer number (77081695).

Almost surely, 2^154163389 is an apocalyptic number.

It is an amenable number.

154163389 is a deficient number, since it is larger than the sum of its proper divisors (1).

154163389 is an equidigital number, since it uses as much as digits as its factorization.

154163389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 154163389 is about 12416.2550312081. The cubic root of 154163389 is about 536.2003374623.

The spelling of 154163389 in words is "one hundred fifty-four million, one hundred sixty-three thousand, three hundred eighty-nine".