161036356 has 24 divisors (see below), whose sum is σ = 310897944. Its totient is φ = 72510720.

The previous prime is 161036353. The next prime is 161036357. The reversal of 161036356 is 653630161.

It can be written as a sum of positive squares in 4 ways, for example, as 256 + 161036100 = 16^2 + 12690^2 .

It is not an unprimeable number, because it can be changed into a prime (161036353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35635 + ... + 39898.

It is an arithmetic number, because the mean of its divisors is an integer number (12954081).

Almost surely, 2^161036356 is an apocalyptic number.

It is an amenable number.

161036356 is a deficient number, since it is larger than the sum of its proper divisors (149861588).

161036356 is a wasteful number, since it uses less digits than its factorization.

161036356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75591 (or 75589 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 161036356 is about 12690.0100866784. The cubic root of 161036356 is about 544.0531279211.

The spelling of 161036356 in words is "one hundred sixty-one million, thirty-six thousand, three hundred fifty-six".