161357132 has 24 divisors (see below), whose sum is σ = 299393136. Its totient is φ = 75829248.

The previous prime is 161357117. The next prime is 161357159. The reversal of 161357132 is 231753161.

161357132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161357132² = 52072248094530848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161357095 and 161357104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75308 + ... + 77420.

It is an arithmetic number, because the mean of its divisors is an integer number (12474714).

Almost surely, 2^161357132 is an apocalyptic number.

It is an amenable number.

161357132 is a deficient number, since it is larger than the sum of its proper divisors (138036004).

161357132 is a wasteful number, since it uses less digits than its factorization.

161357132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257 (or 3255 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 161357132 is about 12702.6427171672. The cubic root of 161357132 is about 544.4141301214.

The spelling of 161357132 in words is "one hundred sixty-one million, three hundred fifty-seven thousand, one hundred thirty-two".