161353552 has 20 divisors (see below), whose sum is σ = 312971040. Its totient is φ = 80586848.

The previous prime is 161353499. The next prime is 161353589. The reversal of 161353552 is 255353161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10599 + ... + 20857.

It is an arithmetic number, because the mean of its divisors is an integer number (15648552).

Almost surely, 2^161353552 is an apocalyptic number.

It is an amenable number.

161353552 is a deficient number, since it is larger than the sum of its proper divisors (151617488).

161353552 is a wasteful number, since it uses less digits than its factorization.

161353552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11250 (or 11244 counting only the distinct ones).

The product of its digits is 13500, while the sum is 31.

The square root of 161353552 is about 12702.5018008265. The cubic root of 161353552 is about 544.4101038207.

The spelling of 161353552 in words is "one hundred sixty-one million, three hundred fifty-three thousand, five hundred fifty-two".