154143155 has 4 divisors (see below), whose sum is σ = 184971792. Its totient is φ = 123314520.

The previous prime is 154143151. The next prime is 154143167. The reversal of 154143155 is 551341451.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 154143155 - 2² = 154143151 is a prime.

It is a super-2 number, since 2×154143155² = 47520224466708050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154143151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15414311 + ... + 15414320.

It is an arithmetic number, because the mean of its divisors is an integer number (46242948).

Almost surely, 2^154143155 is an apocalyptic number.

154143155 is a deficient number, since it is larger than the sum of its proper divisors (30828637).

154143155 is an equidigital number, since it uses as much as digits as its factorization.

154143155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30828636.

The product of its digits is 6000, while the sum is 29.

The square root of 154143155 is about 12415.4401855109. The cubic root of 154143155 is about 536.1768776072.

The spelling of 154143155 in words is "one hundred fifty-four million, one hundred forty-three thousand, one hundred fifty-five".