161108130 has 32 divisors (see below), whose sum is σ = 390495168. Its totient is φ = 42536000.

The previous prime is 161108113. The next prime is 161108131. The reversal of 161108130 is 31801161.

It is a junction number, because it is equal to n+sod(n) for n = 161108097 and 161108106.

It is not an unprimeable number, because it can be changed into a prime (161108131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23556 + ... + 29615.

It is an arithmetic number, because the mean of its divisors is an integer number (12202974).

Almost surely, 2^161108130 is an apocalyptic number.

161108130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161108130 is an abundant number, since it is smaller than the sum of its proper divisors (229387038).

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

161108130 is a wasteful number, since it uses less digits than its factorization.

161108130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53282.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 161108130 is about 12692.8377441768. The cubic root of 161108130 is about 544.1339441837.

Adding to 161108130 its reverse (31801161), we get a palindrome (192909291).

The spelling of 161108130 in words is "one hundred sixty-one million, one hundred eight thousand, one hundred thirty".