154089009 has 6 divisors (see below), whose sum is σ = 222573026. Its totient is φ = 102726000.

The previous prime is 154088981. The next prime is 154089043. The reversal of 154089009 is 900980451.

154089009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 135839025 + 18249984 = 11655^2 + 4272^2 .

It is not a de Polignac number, because 154089009 - 2²⁷ = 19871281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (154089109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8560492 + ... + 8560509.

Almost surely, 2^154089009 is an apocalyptic number.

It is an amenable number.

154089009 is a deficient number, since it is larger than the sum of its proper divisors (68484017).

154089009 is a wasteful number, since it uses less digits than its factorization.

154089009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17121007 (or 17121004 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 154089009 is about 12413.2594027516. The cubic root of 154089009 is about 536.1140891488.

The spelling of 154089009 in words is "one hundred fifty-four million, eighty-nine thousand, nine".