1119729243 has 4 divisors (see below), whose sum is σ = 1492972328. Its totient is φ = 746486160.

The previous prime is 1119729241. The next prime is 1119729253. The reversal of 1119729243 is 3429279111.

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

It is not a de Polignac number, because 1119729243 - 2¹ = 1119729241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1119729241) 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, 186621538 + ... + 186621543.

It is an arithmetic number, because the mean of its divisors is an integer number (373243082).

Almost surely, 2^1119729243 is an apocalyptic number.

1119729243 is a deficient number, since it is larger than the sum of its proper divisors (373243085).

1119729243 is an equidigital number, since it uses as much as digits as its factorization.

1119729243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373243084.

The product of its digits is 27216, while the sum is 39.

The square root of 1119729243 is about 33462.3556104468. The cubic root of 1119729243 is about 1038.4151288564.

The spelling of 1119729243 in words is "one billion, one hundred nineteen million, seven hundred twenty-nine thousand, two hundred forty-three".