161342552 has 16 divisors (see below), whose sum is σ = 345734160. Its totient is φ = 69146784.

The previous prime is 161342543. The next prime is 161342557. The reversal of 161342552 is 255243161.

161342552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161342557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440503 + ... + 1440614.

It is an arithmetic number, because the mean of its divisors is an integer number (21608385).

Almost surely, 2^161342552 is an apocalyptic number.

It is an amenable number.

161342552 is an abundant number, since it is smaller than the sum of its proper divisors (184391608).

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

161342552 is a wasteful number, since it uses less digits than its factorization.

161342552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881130 (or 2881126 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 161342552 is about 12702.0688078754. The cubic root of 161342552 is about 544.3977321331.

The spelling of 161342552 in words is "one hundred sixty-one million, three hundred forty-two thousand, five hundred fifty-two".