1117958945 has 8 divisors (see below), whose sum is σ = 1366863336. Its totient is φ = 877492096.

The previous prime is 1117958939. The next prime is 1117958951. The reversal of 1117958945 is 5498597111.

It is an interprime number because it is at equal distance from previous prime (1117958939) and next prime (1117958951).

It can be written as a sum of positive squares in 4 ways, for example, as 384199201 + 733759744 = 19601^2 + 27088^2 .

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 1117958945 - 2⁴ = 1117958929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1117958893 and 1117958902.

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, 2109092 + ... + 2109621.

It is an arithmetic number, because the mean of its divisors is an integer number (170857917).

Almost surely, 2^1117958945 is an apocalyptic number.

It is an amenable number.

1117958945 is a deficient number, since it is larger than the sum of its proper divisors (248904391).

1117958945 is an equidigital number, since it uses as much as digits as its factorization.

1117958945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218771.

The product of its digits is 453600, while the sum is 50.

The square root of 1117958945 is about 33435.8930641908. The cubic root of 1117958945 is about 1037.8675935545.

The spelling of 1117958945 in words is "one billion, one hundred seventeen million, nine hundred fifty-eight thousand, nine hundred forty-five".