1140154555 has 16 divisors (see below), whose sum is σ = 1450099584. Its totient is φ = 857620480.

The previous prime is 1140154553. The next prime is 1140154573. The reversal of 1140154555 is 5554510411.

It is not a de Polignac number, because 1140154555 - 2¹ = 1140154553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140154553) by changing a digit.

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, 87675 + ... + 99835.

It is an arithmetic number, because the mean of its divisors is an integer number (90631224).

Almost surely, 2^1140154555 is an apocalyptic number.

1140154555 is a deficient number, since it is larger than the sum of its proper divisors (309945029).

1140154555 is a wasteful number, since it uses less digits than its factorization.

1140154555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13286.

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

The square root of 1140154555 is about 33766.1747167191. The cubic root of 1140154555 is about 1044.6911337364.

Adding to 1140154555 its reverse (5554510411), we get a palindrome (6694664966).

It can be divided in two parts, 11401 and 54555, that added together give a palindrome (65956).

The spelling of 1140154555 in words is "one billion, one hundred forty million, one hundred fifty-four thousand, five hundred fifty-five".