161313150 has 96 divisors (see below), whose sum is σ = 417973248. Its totient is φ = 41126400.

The previous prime is 161313143. The next prime is 161313151. The reversal of 161313150 is 51313161.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161313151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 525297 + ... + 525603.

It is an arithmetic number, because the mean of its divisors is an integer number (4353888).

Almost surely, 2^161313150 is an apocalyptic number.

161313150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161313150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208986624).

161313150 is an abundant number, since it is smaller than the sum of its proper divisors (256660098).

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

161313150 is a wasteful number, since it uses less digits than its factorization.

161313150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 161313150 is about 12700.9113846212. The cubic root of 161313150 is about 544.3646609763.

The spelling of 161313150 in words is "one hundred sixty-one million, three hundred thirteen thousand, one hundred fifty".