161294600 has 48 divisors (see below), whose sum is σ = 383011200. Its totient is φ = 63141440.

The previous prime is 161294587. The next prime is 161294641. The reversal of 161294600 is 6492161.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 821 + ... + 17979.

It is an arithmetic number, because the mean of its divisors is an integer number (7979400).

Almost surely, 2^161294600 is an apocalyptic number.

161294600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161294600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191505600).

161294600 is an abundant number, since it is smaller than the sum of its proper divisors (221716600).

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

161294600 is a wasteful number, since it uses less digits than its factorization.

161294600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17222 (or 17213 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 161294600 is about 12700.1811010710. The cubic root of 161294600 is about 544.3437940030.

The spelling of 161294600 in words is "one hundred sixty-one million, two hundred ninety-four thousand, six hundred".