161055241 has 8 divisors (see below), whose sum is σ = 167716800. Its totient is φ = 154467600.

The previous prime is 161055233. The next prime is 161055259. The reversal of 161055241 is 142550161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161055241 - 2³ = 161055233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161055341) 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, 14011 + ... + 22768.

It is an arithmetic number, because the mean of its divisors is an integer number (20964600).

Almost surely, 2^161055241 is an apocalyptic number.

It is an amenable number.

161055241 is a deficient number, since it is larger than the sum of its proper divisors (6661559).

161055241 is a wasteful number, since it uses less digits than its factorization.

161055241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36959.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 161055241 is about 12690.7541541076. The cubic root of 161055241 is about 544.0743944268.

The spelling of 161055241 in words is "one hundred sixty-one million, fifty-five thousand, two hundred forty-one".