1145154155 has 4 divisors (see below), whose sum is σ = 1374184992. Its totient is φ = 916123320.

The previous prime is 1145154121. The next prime is 1145154173. The reversal of 1145154155 is 5514515411.

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

It is not a de Polignac number, because 1145154155 - 2¹⁶ = 1145088619 is a prime.

It is a super-2 number, since 2×1145154155² = 2622756077427528050, which contains 22 as substring.

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, 114515411 + ... + 114515420.

It is an arithmetic number, because the mean of its divisors is an integer number (343546248).

Almost surely, 2^1145154155 is an apocalyptic number.

1145154155 is a deficient number, since it is larger than the sum of its proper divisors (229030837).

1145154155 is an equidigital number, since it uses as much as digits as its factorization.

1145154155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229030836.

The product of its digits is 10000, while the sum is 32.

The square root of 1145154155 is about 33840.1264034282. The cubic root of 1145154155 is about 1046.2159041982.

Adding to 1145154155 its reverse (5514515411), we get a palindrome (6659669566).

The spelling of 1145154155 in words is "one billion, one hundred forty-five million, one hundred fifty-four thousand, one hundred fifty-five".