1140681553 has 8 divisors (see below), whose sum is σ = 1260132480. Its totient is φ = 1023856080.

The previous prime is 1140681467. The next prime is 1140681571. The reversal of 1140681553 is 3551860411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140681553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140681653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655450 + ... + 657187.

It is an arithmetic number, because the mean of its divisors is an integer number (157516560).

Almost surely, 2^1140681553 is an apocalyptic number.

It is an amenable number.

1140681553 is a deficient number, since it is larger than the sum of its proper divisors (119450927).

1140681553 is a wasteful number, since it uses less digits than its factorization.

1140681553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312727.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 1140681553 is about 33773.9774530629. The cubic root of 1140681553 is about 1044.8520666945.

The spelling of 1140681553 in words is "one billion, one hundred forty million, six hundred eighty-one thousand, five hundred fifty-three".