1154054155 has 4 divisors (see below), whose sum is σ = 1384864992. Its totient is φ = 923243320.

The previous prime is 1154054149. The next prime is 1154054201. The reversal of 1154054155 is 5514504511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5514504511 = 2377 ⋅2319943.

It is not a de Polignac number, because 1154054155 - 2³ = 1154054147 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 115405411 + ... + 115405420.

It is an arithmetic number, because the mean of its divisors is an integer number (346216248).

Almost surely, 2^1154054155 is an apocalyptic number.

1154054155 is a deficient number, since it is larger than the sum of its proper divisors (230810837).

1154054155 is an equidigital number, since it uses as much as digits as its factorization.

1154054155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230810836.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 1154054155 is about 33971.3725804537. The cubic root of 1154054155 is about 1048.9192674577.

Adding to 1154054155 its reverse (5514504511), we get a palindrome (6668558666).

The spelling of 1154054155 in words is "one billion, one hundred fifty-four million, fifty-four thousand, one hundred fifty-five".