161151150 has 48 divisors (see below), whose sum is σ = 405157104. Its totient is φ = 42382080.

The previous prime is 161151149. The next prime is 161151163. The reversal of 161151150 is 51151161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3592 + ... + 18308.

It is an arithmetic number, because the mean of its divisors is an integer number (8440773).

Almost surely, 2^161151150 is an apocalyptic number.

161151150 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 161151150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202578552).

161151150 is an abundant number, since it is smaller than the sum of its proper divisors (244005954).

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

161151150 is a wasteful number, since it uses less digits than its factorization.

161151150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14805 (or 14800 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 21.

The square root of 161151150 is about 12694.5322875638. The cubic root of 161151150 is about 544.1823724432.

The spelling of 161151150 in words is "one hundred sixty-one million, one hundred fifty-one thousand, one hundred fifty".