161036136 has 48 divisors (see below), whose sum is σ = 447934500. Its totient is φ = 52227072.

The previous prime is 161036131. The next prime is 161036167. The reversal of 161036136 is 631630161.

It is a happy number.

161036136 is a `hidden beast` number, since 1 + 610 + 36 + 13 + 6 = 666.

161036136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 161036100 + 36 = 12690^2 + 6^2 .

It is not an unprimeable number, because it can be changed into a prime (161036131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27561 + ... + 32888.

Almost surely, 2^161036136 is an apocalyptic number.

It is an amenable number.

161036136 is an abundant number, since it is smaller than the sum of its proper divisors (286898364).

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

161036136 is a wasteful number, since it uses less digits than its factorization.

161036136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60498 (or 60491 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 161036136 is about 12690.0014184396. The cubic root of 161036136 is about 544.0528801681.

Adding to 161036136 its reverse (631630161), we get a palindrome (792666297).

It can be divided in two parts, 1610361 and 36, that multiplied together give a square (57972996 = 7614²).

The spelling of 161036136 in words is "one hundred sixty-one million, thirty-six thousand, one hundred thirty-six".