1140969623 has 4 divisors (see below), whose sum is σ = 1141202328. Its totient is φ = 1140736920.

The previous prime is 1140969617. The next prime is 1140969647. The reversal of 1140969623 is 3269690411.

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 1140969623 - 2¹⁴ = 1140953239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140969653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108836 + ... + 118857.

It is an arithmetic number, because the mean of its divisors is an integer number (285300582).

Almost surely, 2^1140969623 is an apocalyptic number.

1140969623 is a deficient number, since it is larger than the sum of its proper divisors (232705).

1140969623 is an equidigital number, since it uses as much as digits as its factorization.

1140969623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232704.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 1140969623 is about 33778.2418577403. The cubic root of 1140969623 is about 1044.9400156346.

The spelling of 1140969623 in words is "one billion, one hundred forty million, nine hundred sixty-nine thousand, six hundred twenty-three".