161012936 has 32 divisors (see below), whose sum is σ = 346032000. Its totient is φ = 68804736.

The previous prime is 161012927. The next prime is 161012939. The reversal of 161012936 is 639210161.

It is a junction number, because it is equal to n+sod(n) for n = 161012899 and 161012908.

It is not an unprimeable number, because it can be changed into a prime (161012939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16100 + ... + 24108.

It is an arithmetic number, because the mean of its divisors is an integer number (10813500).

Almost surely, 2^161012936 is an apocalyptic number.

It is an amenable number.

161012936 is an abundant number, since it is smaller than the sum of its proper divisors (185019064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161012936 is a wasteful number, since it uses less digits than its factorization.

161012936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381 (or 8377 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 161012936 is about 12689.0872800214. The cubic root of 161012936 is about 544.0267522167.

The spelling of 161012936 in words is "one hundred sixty-one million, twelve thousand, nine hundred thirty-six".