1617056223 has 4 divisors (see below), whose sum is σ = 2156074968. Its totient is φ = 1078037480.

The previous prime is 1617056209. The next prime is 1617056279. The reversal of 1617056223 is 3226507161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3226507161 = 3 ⋅1075502387.

It is a cyclic number.

It is not a de Polignac number, because 1617056223 - 2⁵ = 1617056191 is a prime.

It is a super-2 number, since 2×1617056223² = 5229741656686051458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1617056923) 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, 269509368 + ... + 269509373.

It is an arithmetic number, because the mean of its divisors is an integer number (539018742).

Almost surely, 2^1617056223 is an apocalyptic number.

1617056223 is a deficient number, since it is larger than the sum of its proper divisors (539018745).

1617056223 is an equidigital number, since it uses as much as digits as its factorization.

1617056223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539018744.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1617056223 is about 40212.6376031217. The cubic root of 1617056223 is about 1173.7484722925.

The spelling of 1617056223 in words is "one billion, six hundred seventeen million, fifty-six thousand, two hundred twenty-three".