36261731 has 16 divisors (see below), whose sum is σ = 43711488. Its totient is φ = 29673600.

The previous prime is 36261679. The next prime is 36261733. The reversal of 36261731 is 13716263.

36261731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-36261731 is a prime.

It is a super-2 number, since 2×36261731² = 2629826270232722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36261694 and 36261703.

It is not an unprimeable number, because it can be changed into a prime (36261733) 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 15 ways as a sum of consecutive naturals, for example, 86 + ... + 8516.

It is an arithmetic number, because the mean of its divisors is an integer number (2731968).

Almost surely, 2^36261731 is an apocalyptic number.

36261731 is a deficient number, since it is larger than the sum of its proper divisors (7449757).

36261731 is a wasteful number, since it uses less digits than its factorization.

36261731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8482.

The product of its digits is 4536, while the sum is 29.

The square root of 36261731 is about 6021.7714171164. The cubic root of 36261731 is about 330.9909941173.

Adding to 36261731 its reverse (13716263), we get a palindrome (49977994).

The spelling of 36261731 in words is "thirty-six million, two hundred sixty-one thousand, seven hundred thirty-one".