161050240 has 96 divisors (see below), whose sum is σ = 417185100. Its totient is φ = 59424768.

The previous prime is 161050237. The next prime is 161050261. The reversal of 161050240 is 42050161.

It can be written as a sum of positive squares in 6 ways, for example, as 4700224 + 156350016 = 2168^2 + 12504^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107416 + ... + 108904.

Almost surely, 2^161050240 is an apocalyptic number.

161050240 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 161050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208592550).

161050240 is an abundant number, since it is smaller than the sum of its proper divisors (256134860).

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

161050240 is a wasteful number, since it uses less digits than its factorization.

161050240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 161050240 is about 12690.5571193703. The cubic root of 161050240 is about 544.0687629341.

The spelling of 161050240 in words is "one hundred sixty-one million, fifty thousand, two hundred forty".