36161905 has 16 divisors (see below), whose sum is σ = 46866960. Its totient is φ = 26627328.

The previous prime is 36161899. The next prime is 36161929. The reversal of 36161905 is 50916163.

36161905 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 8 ways, for example, as 1962801 + 34199104 = 1401^2 + 5848^2 .

It is not a de Polignac number, because 36161905 - 2⁷ = 36161777 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32539 + ... + 33631.

It is an arithmetic number, because the mean of its divisors is an integer number (2929185).

Almost surely, 2^36161905 is an apocalyptic number.

It is an amenable number.

36161905 is a deficient number, since it is larger than the sum of its proper divisors (10705055).

36161905 is a wasteful number, since it uses less digits than its factorization.

36161905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 36161905 is about 6013.4769476568. The cubic root of 36161905 is about 330.6869833155.

The spelling of 36161905 in words is "thirty-six million, one hundred sixty-one thousand, nine hundred five".