1140102643 has 4 divisors (see below), whose sum is σ = 1140519528. Its totient is φ = 1139685760.

The previous prime is 1140102599. The next prime is 1140102659. The reversal of 1140102643 is 3462010411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1140102643 - 2²⁵ = 1106548211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140102683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204313 + ... + 209818.

It is an arithmetic number, because the mean of its divisors is an integer number (285129882).

Almost surely, 2^1140102643 is an apocalyptic number.

1140102643 is a deficient number, since it is larger than the sum of its proper divisors (416885).

1140102643 is an equidigital number, since it uses as much as digits as its factorization.

1140102643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416884.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1140102643 is about 33765.4060097017. The cubic root of 1140102643 is about 1044.6752783336.

The spelling of 1140102643 in words is "one billion, one hundred forty million, one hundred two thousand, six hundred forty-three".