161023132 has 12 divisors (see below), whose sum is σ = 288344056. Its totient is φ = 78639120.

The previous prime is 161023127. The next prime is 161023153. The reversal of 161023132 is 231320161.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 467919 + ... + 468262.

Almost surely, 2^161023132 is an apocalyptic number.

It is an amenable number.

161023132 is a deficient number, since it is larger than the sum of its proper divisors (127320924).

161023132 is a wasteful number, since it uses less digits than its factorization.

161023132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936228 (or 936226 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 161023132 is about 12689.4890362063. The cubic root of 161023132 is about 544.0382353100.

Adding to 161023132 its reverse (231320161), we get a palindrome (392343293).

It can be divided in two parts, 1610 and 23132, that added together give a palindrome (24742).

The spelling of 161023132 in words is "one hundred sixty-one million, twenty-three thousand, one hundred thirty-two".