161442033 has 8 divisors (see below), whose sum is σ = 216827808. Its totient is φ = 106842144.

The previous prime is 161442011. The next prime is 161442041. The reversal of 161442033 is 330244161.

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

It is not a de Polignac number, because 161442033 - 2¹³ = 161433841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161441994 and 161442012.

It is not an unprimeable number, because it can be changed into a prime (161442733) 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, 195991 + ... + 196812.

It is an arithmetic number, because the mean of its divisors is an integer number (27103476).

Almost surely, 2^161442033 is an apocalyptic number.

It is an amenable number.

161442033 is a deficient number, since it is larger than the sum of its proper divisors (55385775).

161442033 is a wasteful number, since it uses less digits than its factorization.

161442033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392943.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 161442033 is about 12705.9841413406. The cubic root of 161442033 is about 544.5095978563.

Adding to 161442033 its reverse (330244161), we get a palindrome (491686194).

The spelling of 161442033 in words is "one hundred sixty-one million, four hundred forty-two thousand, thirty-three".