1156288745 has 8 divisors (see below), whose sum is σ = 1469166984. Its totient is φ = 870617344.

The previous prime is 1156288717. The next prime is 1156288751. The reversal of 1156288745 is 5478826511.

It can be written as a sum of positive squares in 4 ways, for example, as 382280704 + 774008041 = 19552^2 + 27821^2 .

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 1156288745 - 2¹⁸ = 1156026601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1156288745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6801614 + ... + 6801783.

It is an arithmetic number, because the mean of its divisors is an integer number (183645873).

Almost surely, 2^1156288745 is an apocalyptic number.

It is an amenable number.

1156288745 is a deficient number, since it is larger than the sum of its proper divisors (312878239).

1156288745 is a wasteful number, since it uses less digits than its factorization.

1156288745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13603419.

The product of its digits is 537600, while the sum is 47.

The square root of 1156288745 is about 34004.2459848767. The cubic root of 1156288745 is about 1049.5958368920.

The spelling of 1156288745 in words is "one billion, one hundred fifty-six million, two hundred eighty-eight thousand, seven hundred forty-five".