1151254155 has 16 divisors (see below), whose sum is σ = 1855455264. Its totient is φ = 609519360.

The previous prime is 1151254141. The next prime is 1151254171. The reversal of 1151254155 is 5514521511.

It is not a de Polignac number, because 1151254155 - 2¹¹ = 1151252107 is a prime.

It is a super-2 number, since 2×1151254155² = 2650772258809528050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 278056 + ... + 282165.

It is an arithmetic number, because the mean of its divisors is an integer number (115965954).

Almost surely, 2^1151254155 is an apocalyptic number.

1151254155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151254155 is a deficient number, since it is larger than the sum of its proper divisors (704201109).

1151254155 is a wasteful number, since it uses less digits than its factorization.

1151254155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560366.

The product of its digits is 5000, while the sum is 30.

The square root of 1151254155 is about 33930.1363834571. The cubic root of 1151254155 is about 1048.0702742511.

Adding to 1151254155 its reverse (5514521511), we get a palindrome (6665775666).

The spelling of 1151254155 in words is "one billion, one hundred fifty-one million, two hundred fifty-four thousand, one hundred fifty-five".