1140407081 has 16 divisors (see below), whose sum is σ = 1282348608. Its totient is φ = 1005048000.

The previous prime is 1140407071. The next prime is 1140407101. The reversal of 1140407081 is 1807040411.

It is not a de Polignac number, because 1140407081 - 2²⁶ = 1073298217 is a prime.

It is a super-2 number, since 2×1140407081² = 2601056620789881122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140407081.

It is not an unprimeable number, because it can be changed into a prime (1140407011) 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, 110231 + ... + 120131.

It is an arithmetic number, because the mean of its divisors is an integer number (80146788).

Almost surely, 2^1140407081 is an apocalyptic number.

1140407081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1140407081 is a deficient number, since it is larger than the sum of its proper divisors (141941527).

1140407081 is a wasteful number, since it uses less digits than its factorization.

1140407081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 1140407081 is about 33769.9138435383. The cubic root of 1140407081 is about 1044.7682555026.

Adding to 1140407081 its reverse (1807040411), we get a palindrome (2947447492).

It can be divided in two parts, 114040 and 7081, that added together give a palindrome (121121).

The spelling of 1140407081 in words is "one billion, one hundred forty million, four hundred seven thousand, eighty-one".