154143849 has 8 divisors (see below), whose sum is σ = 205597120. Its totient is φ = 102726576.

The previous prime is 154143823. The next prime is 154143853. The reversal of 154143849 is 948341451.

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

It is not a de Polignac number, because 154143849 - 2⁸ = 154143593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154143859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3459 + ... + 17895.

It is an arithmetic number, because the mean of its divisors is an integer number (25699640).

Almost surely, 2^154143849 is an apocalyptic number.

It is an amenable number.

154143849 is a deficient number, since it is larger than the sum of its proper divisors (51453271).

154143849 is a wasteful number, since it uses less digits than its factorization.

154143849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17999.

The product of its digits is 69120, while the sum is 39.

The square root of 154143849 is about 12415.4681345489. The cubic root of 154143849 is about 536.1776822838.

The spelling of 154143849 in words is "one hundred fifty-four million, one hundred forty-three thousand, eight hundred forty-nine".