154049609 has 8 divisors (see below), whose sum is σ = 176566848. Its totient is φ = 131659920.

The previous prime is 154049593. The next prime is 154049617. The reversal of 154049609 is 906940451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 154049609 - 2⁴ = 154049593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154049639) 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 in 7 ways as a sum of consecutive naturals, for example, 29282 + ... + 34139.

It is an arithmetic number, because the mean of its divisors is an integer number (22070856).

Almost surely, 2^154049609 is an apocalyptic number.

It is an amenable number.

154049609 is a deficient number, since it is larger than the sum of its proper divisors (22517239).

154049609 is an equidigital number, since it uses as much as digits as its factorization.

154049609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63775.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 154049609 is about 12411.6722886161. The cubic root of 154049609 is about 536.0683911117.

The spelling of 154049609 in words is "one hundred fifty-four million, forty-nine thousand, six hundred nine".