1129750443 has 16 divisors (see below), whose sum is σ = 1677936160. Its totient is φ = 751262688.

The previous prime is 1129750429. The next prime is 1129750451. The reversal of 1129750443 is 3440579211.

It is not a de Polignac number, because 1129750443 - 2⁵ = 1129750411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1129750398 and 1129750407.

It is not an unprimeable number, because it can be changed into a prime (1129750463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41980 + ... + 63417.

It is an arithmetic number, because the mean of its divisors is an integer number (104871010).

Almost surely, 2^1129750443 is an apocalyptic number.

1129750443 is a deficient number, since it is larger than the sum of its proper divisors (548185717).

1129750443 is a wasteful number, since it uses less digits than its factorization.

1129750443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105803 (or 105797 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1129750443 is about 33611.7604864726. The cubic root of 1129750443 is about 1041.5037550568.

The spelling of 1129750443 in words is "one billion, one hundred twenty-nine million, seven hundred fifty thousand, four hundred forty-three".