1140041154 has 96 divisors (see below), whose sum is σ = 2815672320. Its totient is φ = 305962272.

The previous prime is 1140041081. The next prime is 1140041191. The reversal of 1140041154 is 4511400411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140041154.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 708619 + ... + 710225.

It is an arithmetic number, because the mean of its divisors is an integer number (29329920).

Almost surely, 2^1140041154 is an apocalyptic number.

1140041154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1140041154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407836160).

1140041154 is an abundant number, since it is smaller than the sum of its proper divisors (1675631166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1140041154 is a wasteful number, since it uses less digits than its factorization.

1140041154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1140041154 is about 33764.4954649111. The cubic root of 1140041154 is about 1044.6564972196.

Adding to 1140041154 its reverse (4511400411), we get a palindrome (5651441565).

It can be divided in two parts, 11400 and 41154, that multiplied together give a square (469155600 = 21660²).

The spelling of 1140041154 in words is "one billion, one hundred forty million, forty-one thousand, one hundred fifty-four".