161152146 has 64 divisors (see below), whose sum is σ = 381024000. Its totient is φ = 50312448.

The previous prime is 161152133. The next prime is 161152153. The reversal of 161152146 is 641251161.

161152146 is a `hidden beast` number, since 1 + 611 + 5 + 2 + 1 + 46 = 666.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320131 + ... + 320633.

It is an arithmetic number, because the mean of its divisors is an integer number (5953500).

Almost surely, 2^161152146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161152146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190512000).

161152146 is an abundant number, since it is smaller than the sum of its proper divisors (219871854).

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

161152146 is a wasteful number, since it uses less digits than its factorization.

161152146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 874 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 161152146 is about 12694.5715169910. The cubic root of 161152146 is about 544.1834935533.

The spelling of 161152146 in words is "one hundred sixty-one million, one hundred fifty-two thousand, one hundred forty-six".