161850150 has 288 divisors, whose sum is σ = 565463808. Its totient is φ = 33436800.

The previous prime is 161850133. The next prime is 161850179. The reversal of 161850150 is 51058161.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 935464 + ... + 935636.

It is an arithmetic number, because the mean of its divisors is an integer number (1963416).

Almost surely, 2^161850150 is an apocalyptic number.

161850150 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 161850150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282731904).

161850150 is an abundant number, since it is smaller than the sum of its proper divisors (403613658).

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

161850150 is a wasteful number, since it uses less digits than its factorization.

161850150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 161850150 is about 12722.0340354835. The cubic root of 161850150 is about 544.9680423424.

The spelling of 161850150 in words is "one hundred sixty-one million, eight hundred fifty thousand, one hundred fifty".