1117620505 has 16 divisors (see below), whose sum is σ = 1361733120. Its totient is φ = 880431552.

The previous prime is 1117620433. The next prime is 1117620509. The reversal of 1117620505 is 5050267111.

It is a cyclic number.

It is not a de Polignac number, because 1117620505 - 2⁷ = 1117620377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1117620509) 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 15 ways as a sum of consecutive naturals, for example, 153252 + ... + 160378.

It is an arithmetic number, because the mean of its divisors is an integer number (85108320).

Almost surely, 2^1117620505 is an apocalyptic number.

It is an amenable number.

1117620505 is a deficient number, since it is larger than the sum of its proper divisors (244112615).

1117620505 is an equidigital number, since it uses as much as digits as its factorization.

1117620505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 1117620505 is about 33430.8316528321. The cubic root of 1117620505 is about 1037.7628516761.

Adding to 1117620505 its reverse (5050267111), we get a palindrome (6167887616).

The spelling of 1117620505 in words is "one billion, one hundred seventeen million, six hundred twenty thousand, five hundred five".