161288052 has 24 divisors (see below), whose sum is σ = 392702016. Its totient is φ = 51425088.

The previous prime is 161288051. The next prime is 161288147. The reversal of 161288052 is 250882161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161288051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291913 + ... + 292464.

It is an arithmetic number, because the mean of its divisors is an integer number (16362584).

Almost surely, 2^161288052 is an apocalyptic number.

161288052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161288052 is an abundant number, since it is smaller than the sum of its proper divisors (231413964).

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

161288052 is a wasteful number, since it uses less digits than its factorization.

161288052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584407 (or 584405 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 161288052 is about 12699.9233068550. The cubic root of 161288052 is about 544.3364277482.

The spelling of 161288052 in words is "one hundred sixty-one million, two hundred eighty-eight thousand, fifty-two".