161717094 has 256 divisors, whose sum is σ = 497664000. Its totient is φ = 37635840.

The previous prime is 161717093. The next prime is 161717099. The reversal of 161717094 is 490717161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161717093) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1817002 + ... + 1817090.

It is an arithmetic number, because the mean of its divisors is an integer number (1944000).

Almost surely, 2^161717094 is an apocalyptic number.

161717094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161717094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248832000).

161717094 is an abundant number, since it is smaller than the sum of its proper divisors (335946906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161717094 is a wasteful number, since it uses less digits than its factorization.

161717094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 161717094 is about 12716.8036078254. The cubic root of 161717094 is about 544.8186631228.

The spelling of 161717094 in words is "one hundred sixty-one million, seven hundred seventeen thousand, ninety-four".