1125780105 has 8 divisors (see below), whose sum is σ = 1801248192. Its totient is φ = 600416048.

The previous prime is 1125780083. The next prime is 1125780107. The reversal of 1125780105 is 5010875211.

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

It is a cyclic number.

It is not a de Polignac number, because 1125780105 - 2³⁰ = 52038281 is a prime.

It is a super-2 number, since 2×1125780105² = 2534761689627622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125780107) 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 7 ways as a sum of consecutive naturals, for example, 37525989 + ... + 37526018.

It is an arithmetic number, because the mean of its divisors is an integer number (225156024).

Almost surely, 2^1125780105 is an apocalyptic number.

1125780105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1125780105 is a deficient number, since it is larger than the sum of its proper divisors (675468087).

1125780105 is an equidigital number, since it uses as much as digits as its factorization.

1125780105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75052015.

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 1125780105 is about 33552.6467659408. The cubic root of 1125780105 is about 1040.2822535799.

The spelling of 1125780105 in words is "one billion, one hundred twenty-five million, seven hundred eighty thousand, one hundred five".