154218113 has 4 divisors (see below), whose sum is σ = 176249280. Its totient is φ = 132186948.

The previous prime is 154218091. The next prime is 154218131. The reversal of 154218113 is 311812451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311812451 = 179 ⋅1741969.

It is a cyclic number.

It is not a de Polignac number, because 154218113 - 2¹² = 154214017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154218173) 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, 11015573 + ... + 11015586.

It is an arithmetic number, because the mean of its divisors is an integer number (44062320).

Almost surely, 2^154218113 is an apocalyptic number.

It is an amenable number.

154218113 is a deficient number, since it is larger than the sum of its proper divisors (22031167).

154218113 is an equidigital number, since it uses as much as digits as its factorization.

154218113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22031166.

The product of its digits is 960, while the sum is 26.

The square root of 154218113 is about 12418.4585597408. The cubic root of 154218113 is about 536.2637756888.

The spelling of 154218113 in words is "one hundred fifty-four million, two hundred eighteen thousand, one hundred thirteen".