161244608 has 56 divisors (see below), whose sum is σ = 366979200. Its totient is φ = 68859648.

The previous prime is 161244599. The next prime is 161244617. The reversal of 161244608 is 806442161.

It is an interprime number because it is at equal distance from previous prime (161244599) and next prime (161244617).

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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, 187283 + ... + 188141.

It is an arithmetic number, because the mean of its divisors is an integer number (6553200).

Almost surely, 2^161244608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161244608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183489600).

161244608 is an abundant number, since it is smaller than the sum of its proper divisors (205734592).

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

161244608 is an equidigital number, since it uses as much as digits as its factorization.

161244608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297 (or 1287 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 161244608 is about 12698.2127876328. The cubic root of 161244608 is about 544.2875498244.

Adding to 161244608 its reverse (806442161), we get a palindrome (967686769).

The spelling of 161244608 in words is "one hundred sixty-one million, two hundred forty-four thousand, six hundred eight".