154983155 has 4 divisors (see below), whose sum is σ = 185979792. Its totient is φ = 123986520.

The previous prime is 154983149. The next prime is 154983217. The reversal of 154983155 is 551389451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551389451 = 9127 ⋅60413.

It is not a de Polignac number, because 154983155 - 2¹² = 154979059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15498311 + ... + 15498320.

It is an arithmetic number, because the mean of its divisors is an integer number (46494948).

Almost surely, 2^154983155 is an apocalyptic number.

154983155 is a deficient number, since it is larger than the sum of its proper divisors (30996637).

154983155 is an equidigital number, since it uses as much as digits as its factorization.

154983155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30996636.

The product of its digits is 108000, while the sum is 41.

The square root of 154983155 is about 12449.2230681276. The cubic root of 154983155 is about 537.1490754261.

The spelling of 154983155 in words is "one hundred fifty-four million, nine hundred eighty-three thousand, one hundred fifty-five".