161006013 has 36 divisors (see below), whose sum is σ = 271597248. Its totient is φ = 91642320.

The previous prime is 161006009. The next prime is 161006017. The reversal of 161006013 is 310600161.

161006013 is a `hidden beast` number, since 1 + 61 + 0 + 0 + 601 + 3 = 666.

161006013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161006009) and next prime (161006017).

It is not a de Polignac number, because 161006013 - 2² = 161006009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161006017) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145420 + ... + 146522.

It is an arithmetic number, because the mean of its divisors is an integer number (7544368).

Almost surely, 2^161006013 is an apocalyptic number.

It is an amenable number.

161006013 is a deficient number, since it is larger than the sum of its proper divisors (110591235).

161006013 is a wasteful number, since it uses less digits than its factorization.

161006013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 1444 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 161006013 is about 12688.8144836308. The cubic root of 161006013 is about 544.0189550146.

Adding to 161006013 its reverse (310600161), we get a palindrome (471606174).

The spelling of 161006013 in words is "one hundred sixty-one million, six thousand, thirteen".