161148 has 24 divisors (see below), whose sum is σ = 405328. Its totient is φ = 49536.

The previous prime is 161141. The next prime is 161149. The reversal of 161148 is 841161.

161148 = 7² + 8² + ... + 78².

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 161148.

It is not an unprimeable number, because it can be changed into a prime (161141) by changing a digit.

161148 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361 + ... + 672.

2¹⁶¹¹⁴⁸ is an apocalyptic number.

It is an amenable number.

161148 is an abundant number, since it is smaller than the sum of its proper divisors (244180).

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

161148 is a wasteful number, since it uses less digits than its factorization.

161148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053 (or 1051 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

The square root of 161148 is about 401.4324351619. The cubic root of 161148 is about 54.4178826733.

The spelling of 161148 in words is "one hundred sixty-one thousand, one hundred forty-eight".