1140553155 has 24 divisors (see below), whose sum is σ = 2122826832. Its totient is φ = 521395392.

The previous prime is 1140553153. The next prime is 1140553201. The reversal of 1140553155 is 5513550411.

It is not a de Polignac number, because 1140553155 - 2¹ = 1140553153 is a prime.

It is a super-2 number, since 2×1140553155² = 2601722998760908050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1140553153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 775152 + ... + 776621.

It is an arithmetic number, because the mean of its divisors is an integer number (88451118).

Almost surely, 2^1140553155 is an apocalyptic number.

1140553155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1140553155 is a deficient number, since it is larger than the sum of its proper divisors (982273677).

1140553155 is a wasteful number, since it uses less digits than its factorization.

1140553155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551795 (or 1551788 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1140553155 is about 33772.0765574165. The cubic root of 1140553155 is about 1044.8128614932.

The spelling of 1140553155 in words is "one billion, one hundred forty million, five hundred fifty-three thousand, one hundred fifty-five".