1125661713 has 8 divisors (see below), whose sum is σ = 1637326176. Its totient is φ = 682219200.

The previous prime is 1125661711. The next prime is 1125661717. The reversal of 1125661713 is 3171665211.

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

It is not a de Polignac number, because 1125661713 - 2¹ = 1125661711 is a prime.

It is a super-2 number, since 2×1125661713² = 2534228584228188738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 34110961 = 1125661713 / (1 + 1 + 2 + 5 + 6 + 6 + 1 + 7 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (1125661711) 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, 17055448 + ... + 17055513.

It is an arithmetic number, because the mean of its divisors is an integer number (204665772).

Almost surely, 2^1125661713 is an apocalyptic number.

It is an amenable number.

1125661713 is a deficient number, since it is larger than the sum of its proper divisors (511664463).

1125661713 is a wasteful number, since it uses less digits than its factorization.

1125661713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34110975.

The product of its digits is 7560, while the sum is 33.

The square root of 1125661713 is about 33550.8824474111. The cubic root of 1125661713 is about 1040.2457854119.

The spelling of 1125661713 in words is "one billion, one hundred twenty-five million, six hundred sixty-one thousand, seven hundred thirteen".