36131728 has 10 divisors (see below), whose sum is σ = 70005254. Its totient is φ = 18065856.

The previous prime is 36131717. The next prime is 36131731. The reversal of 36131728 is 82713163.

It can be written as a sum of positive squares in only one way, i.e., 18558864 + 17572864 = 4308^2 + 4192^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 36131728.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1129101 + ... + 1129132.

Almost surely, 2^36131728 is an apocalyptic number.

It is an amenable number.

36131728 is a deficient number, since it is larger than the sum of its proper divisors (33873526).

36131728 is a wasteful number, since it uses less digits than its factorization.

36131728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258241 (or 2258235 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 36131728 is about 6010.9673098429. The cubic root of 36131728 is about 330.5949719549.

The spelling of 36131728 in words is "thirty-six million, one hundred thirty-one thousand, seven hundred twenty-eight".