161325300 has 72 divisors (see below), whose sum is σ = 469504672. Its totient is φ = 42768000.

The previous prime is 161325299. The next prime is 161325313. The reversal of 161325300 is 3523161.

161325300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52815 + ... + 55785.

Almost surely, 2^161325300 is an apocalyptic number.

161325300 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 161325300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234752336).

161325300 is an abundant number, since it is smaller than the sum of its proper divisors (308179372).

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

161325300 is a wasteful number, since it uses less digits than its factorization.

161325300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169 (or 3162 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 161325300 is about 12701.3896877468. The cubic root of 161325300 is about 544.3783276955.

Adding to 161325300 its reverse (3523161), we get a palindrome (164848461).

The spelling of 161325300 in words is "one hundred sixty-one million, three hundred twenty-five thousand, three hundred".