8917290145 has 8 divisors (see below), whose sum is σ = 10701847656. Its totient is φ = 7133099136.

The previous prime is 8917290073. The next prime is 8917290157. The reversal of 8917290145 is 5410927198.

It can be written as a sum of positive squares in 4 ways, for example, as 633377889 + 8283912256 = 25167^2 + 91016^2 .

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 8917290145 - 2¹⁹ = 8916765857 is a prime.

It is a super-2 number, since 2×8917290145² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8917290095 and 8917290104.

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, 34902 + ... + 138031.

It is an arithmetic number, because the mean of its divisors is an integer number (1337730957).

Almost surely, 2^8917290145 is an apocalyptic number.

It is an amenable number.

8917290145 is a deficient number, since it is larger than the sum of its proper divisors (1784557511).

8917290145 is a wasteful number, since it uses less digits than its factorization.

8917290145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183251.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 8917290145 is about 94431.4044425900. The cubic root of 8917290145 is about 2073.6922243779.

The spelling of 8917290145 in words is "eight billion, nine hundred seventeen million, two hundred ninety thousand, one hundred forty-five".