161203050 has 36 divisors (see below), whose sum is σ = 433100070. Its totient is φ = 42987360.

The previous prime is 161203037. The next prime is 161203073. The reversal of 161203050 is 50302161.

161203050 is a `hidden beast` number, since 1 + 612 + 0 + 3 + 0 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 155825289 + 5377761 = 12483^2 + 2319^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 178665 + ... + 179564.

Almost surely, 2^161203050 is an apocalyptic number.

161203050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161203050 is an abundant number, since it is smaller than the sum of its proper divisors (271897020).

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

161203050 is a wasteful number, since it uses less digits than its factorization.

161203050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358247 (or 358239 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 161203050 is about 12696.5763101712. The cubic root of 161203050 is about 544.2407855825.

The spelling of 161203050 in words is "one hundred sixty-one million, two hundred three thousand, fifty".