161739033 has 8 divisors (see below), whose sum is σ = 216448896. Its totient is φ = 107427600.

The previous prime is 161739023. The next prime is 161739091. The reversal of 161739033 is 330937161.

161739033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161739033 - 2¹³ = 161730841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161738985 and 161739003.

It is not an unprimeable number, because it can be changed into a prime (161739023) 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, 98658 + ... + 100283.

It is an arithmetic number, because the mean of its divisors is an integer number (27056112).

Almost surely, 2^161739033 is an apocalyptic number.

It is an amenable number.

161739033 is a deficient number, since it is larger than the sum of its proper divisors (54709863).

161739033 is a wasteful number, since it uses less digits than its factorization.

161739033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199215.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 161739033 is about 12717.6661774085. Note that the first 3 decimals coincide. The cubic root of 161739033 is about 544.8432992242.

The spelling of 161739033 in words is "one hundred sixty-one million, seven hundred thirty-nine thousand, thirty-three".