1140253923 has 4 divisors (see below), whose sum is σ = 1520338568. Its totient is φ = 760169280.

The previous prime is 1140253921. The next prime is 1140253931. The reversal of 1140253923 is 3293520411.

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

It is not a de Polignac number, because 1140253923 - 2¹ = 1140253921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140253921) 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, 190042318 + ... + 190042323.

It is an arithmetic number, because the mean of its divisors is an integer number (380084642).

Almost surely, 2^1140253923 is an apocalyptic number.

1140253923 is a deficient number, since it is larger than the sum of its proper divisors (380084645).

1140253923 is an equidigital number, since it uses as much as digits as its factorization.

1140253923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380084644.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1140253923 is about 33767.6460980033. The cubic root of 1140253923 is about 1044.7214822105.

The spelling of 1140253923 in words is "one billion, one hundred forty million, two hundred fifty-three thousand, nine hundred twenty-three".