161233150 has 24 divisors (see below), whose sum is σ = 322963704. Its totient is φ = 59532000.

The previous prime is 161233141. The next prime is 161233157. The reversal of 161233150 is 51332161.

It is a happy number.

It is a super-2 number, since 2×161233150² = 51992257317845000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161233157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123376 + ... + 124675.

It is an arithmetic number, because the mean of its divisors is an integer number (13456821).

Almost surely, 2^161233150 is an apocalyptic number.

161233150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161233150 is an abundant number, since it is smaller than the sum of its proper divisors (161730554).

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

161233150 is a wasteful number, since it uses less digits than its factorization.

161233150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248076 (or 248071 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 161233150 is about 12697.7616137648. The cubic root of 161233150 is about 544.2746572083.

The spelling of 161233150 in words is "one hundred sixty-one million, two hundred thirty-three thousand, one hundred fifty".