1140694263 has 12 divisors (see below), whose sum is σ = 1648197408. Its totient is φ = 760219200.

The previous prime is 1140694253. The next prime is 1140694273. The reversal of 1140694263 is 3624960411.

It is an interprime number because it is at equal distance from previous prime (1140694253) and next prime (1140694273).

It is not a de Polignac number, because 1140694263 - 2⁸ = 1140694007 is a prime.

It is a super-2 number, since 2×1140694263² = 2602366803282226338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140694213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12063 + ... + 49263.

It is an arithmetic number, because the mean of its divisors is an integer number (137349784).

Almost surely, 2^1140694263 is an apocalyptic number.

1140694263 is a deficient number, since it is larger than the sum of its proper divisors (507503145).

1140694263 is a wasteful number, since it uses less digits than its factorization.

1140694263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40614 (or 40611 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1140694263 is about 33774.1656151562. The cubic root of 1140694263 is about 1044.8559474213.

The spelling of 1140694263 in words is "one billion, one hundred forty million, six hundred ninety-four thousand, two hundred sixty-three".