1117572145 has 8 divisors (see below), whose sum is σ = 1354107456. Its totient is φ = 885377136.

The previous prime is 1117572059. The next prime is 1117572149. The reversal of 1117572145 is 5412757111.

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 1117572145 - 2¹⁹ = 1117047857 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 1117572145.

It is not an unprimeable number, because it can be changed into a prime (1117572149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084507 + ... + 1085536.

It is an arithmetic number, because the mean of its divisors is an integer number (169263432).

Almost surely, 2^1117572145 is an apocalyptic number.

It is an amenable number.

1117572145 is a deficient number, since it is larger than the sum of its proper divisors (236535311).

1117572145 is a wasteful number, since it uses less digits than its factorization.

1117572145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170151.

The product of its digits is 9800, while the sum is 34.

The square root of 1117572145 is about 33430.1083605782. The cubic root of 1117572145 is about 1037.7478832872.

The spelling of 1117572145 in words is "one billion, one hundred seventeen million, five hundred seventy-two thousand, one hundred forty-five".