161443552 has 24 divisors (see below), whose sum is σ = 320661936. Its totient is φ = 80005632.

The previous prime is 161443547. The next prime is 161443553. The reversal of 161443552 is 255344161.

It is a happy number.

161443552 is digitally balanced in base 3, 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 (161443553) 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, 18708 + ... + 25939.

It is an arithmetic number, because the mean of its divisors is an integer number (13360914).

Almost surely, 2^161443552 is an apocalyptic number.

It is an amenable number.

161443552 is a deficient number, since it is larger than the sum of its proper divisors (159218384).

161443552 is a wasteful number, since it uses less digits than its factorization.

161443552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44770 (or 44762 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 161443552 is about 12706.0439161841. The cubic root of 161443552 is about 544.5113056055.

The spelling of 161443552 in words is "one hundred sixty-one million, four hundred forty-three thousand, five hundred fifty-two".