154380849 has 8 divisors (see below), whose sum is σ = 235247040. Its totient is φ = 88217616.

The previous prime is 154380803. The next prime is 154380851. The reversal of 154380849 is 948083451.

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

It is not a de Polignac number, because 154380849 - 2⁸ = 154380593 is a prime.

It is a super-3 number, since 3×154380849³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154380849.

It is not an unprimeable number, because it can be changed into a prime (154381849) 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, 3675714 + ... + 3675755.

It is an arithmetic number, because the mean of its divisors is an integer number (29405880).

Almost surely, 2^154380849 is an apocalyptic number.

It is an amenable number.

154380849 is a deficient number, since it is larger than the sum of its proper divisors (80866191).

154380849 is an equidigital number, since it uses as much as digits as its factorization.

154380849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7351479.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 154380849 is about 12425.0090140812. The cubic root of 154380849 is about 536.4523370745.

The spelling of 154380849 in words is "one hundred fifty-four million, three hundred eighty thousand, eight hundred forty-nine".