1617112043 has 4 divisors (see below), whose sum is σ = 1619559168. Its totient is φ = 1614664920.

The previous prime is 1617112039. The next prime is 1617112069. The reversal of 1617112043 is 3402117161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3402117161 = 8867 ⋅383683.

It is a cyclic number.

It is not a de Polignac number, because 1617112043 - 2² = 1617112039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1617112073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222571 + ... + 1223892.

It is an arithmetic number, because the mean of its divisors is an integer number (404889792).

Almost surely, 2^1617112043 is an apocalyptic number.

1617112043 is a deficient number, since it is larger than the sum of its proper divisors (2447125).

1617112043 is an equidigital number, since it uses as much as digits as its factorization.

1617112043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447124.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1617112043 is about 40213.3316575486. The cubic root of 1617112043 is about 1173.7619778806.

The spelling of 1617112043 in words is "one billion, six hundred seventeen million, one hundred twelve thousand, forty-three".