1140005893 has 6 divisors (see below), whose sum is σ = 1234444434. Its totient is φ = 1052312976.

The previous prime is 1140005869. The next prime is 1140005897. The reversal of 1140005893 is 3985000411.

It can be written as a sum of positive squares in 3 ways, for example, as 7144929 + 1132860964 = 2673^2 + 33658^2 .

It is not a de Polignac number, because 1140005893 - 2²⁹ = 603134981 is a prime.

It is a super-2 number, since 2×1140005893² = 2599226872149454898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140005897) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3372630 + ... + 3372967.

It is an arithmetic number, because the mean of its divisors is an integer number (205740739).

Almost surely, 2^1140005893 is an apocalyptic number.

1140005893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1140005893 is a deficient number, since it is larger than the sum of its proper divisors (94438541).

1140005893 is an equidigital number, since it uses as much as digits as its factorization.

1140005893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745623 (or 6745610 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1140005893 is about 33763.9732999539. The cubic root of 1140005893 is about 1044.6457268446.

The spelling of 1140005893 in words is "one billion, one hundred forty million, five thousand, eight hundred ninety-three".