1125555043 has 8 divisors (see below), whose sum is σ = 1148748480. Its totient is φ = 1102549800.

The previous prime is 1125555031. The next prime is 1125555061. The reversal of 1125555043 is 3405555211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125555043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125554996 and 1125555014.

It is not an unprimeable number, because it can be changed into a prime (1125555943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34933 + ... + 58918.

It is an arithmetic number, because the mean of its divisors is an integer number (143593560).

Almost surely, 2^1125555043 is an apocalyptic number.

1125555043 is a deficient number, since it is larger than the sum of its proper divisors (23193437).

1125555043 is an equidigital number, since it uses as much as digits as its factorization.

1125555043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94097.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 1125555043 is about 33549.2927347210. The cubic root of 1125555043 is about 1040.2129257698.

The spelling of 1125555043 in words is "one billion, one hundred twenty-five million, five hundred fifty-five thousand, forty-three".