161232148 has 144 divisors (see below), whose sum is σ = 390930624. Its totient is φ = 57308160.

The previous prime is 161232121. The next prime is 161232163. The reversal of 161232148 is 841232161.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1942515 + ... + 1942597.

It is an arithmetic number, because the mean of its divisors is an integer number (2714796).

Almost surely, 2^161232148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161232148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195465312).

161232148 is an abundant number, since it is smaller than the sum of its proper divisors (229698476).

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

161232148 is a wasteful number, since it uses less digits than its factorization.

161232148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 173 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 161232148 is about 12697.7221579305. The cubic root of 161232148 is about 544.2735297223.

The spelling of 161232148 in words is "one hundred sixty-one million, two hundred thirty-two thousand, one hundred forty-eight".