36137681 has 8 divisors (see below), whose sum is σ = 37200000. Its totient is φ = 35090640.

The previous prime is 36137671. The next prime is 36137693. The reversal of 36137681 is 18673163.

36137681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36137681 - 2¹⁴ = 36121297 is a prime.

It is a super-2 number, since 2×36137681² = 2611863976115522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36137671) 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, 1070 + ... + 8568.

It is an arithmetic number, because the mean of its divisors is an integer number (4650000).

Almost surely, 2^36137681 is an apocalyptic number.

It is an amenable number.

36137681 is a deficient number, since it is larger than the sum of its proper divisors (1062319).

36137681 is an equidigital number, since it uses as much as digits as its factorization.

36137681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639.

The product of its digits is 18144, while the sum is 35.

The square root of 36137681 is about 6011.4624676529. The cubic root of 36137681 is about 330.6131270401.

The spelling of 36137681 in words is "thirty-six million, one hundred thirty-seven thousand, six hundred eighty-one".