161632052 has 12 divisors (see below), whose sum is σ = 284921700. Its totient is φ = 80225856.

The previous prime is 161632019. The next prime is 161632057. The reversal of 161632052 is 250236161.

161632052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140801956 + 20830096 = 11866^2 + 4564^2 .

It is a super-2 number, since 2×161632052² = 52249840467461408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161632057) by changing a digit.

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, 146927 + ... + 148022.

It is an arithmetic number, because the mean of its divisors is an integer number (23743475).

Almost surely, 2^161632052 is an apocalyptic number.

It is an amenable number.

161632052 is a deficient number, since it is larger than the sum of its proper divisors (123289648).

161632052 is a wasteful number, since it uses less digits than its factorization.

161632052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295090 (or 295088 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 161632052 is about 12713.4594819821. The cubic root of 161632052 is about 544.7231453030.

The spelling of 161632052 in words is "one hundred sixty-one million, six hundred thirty-two thousand, fifty-two".