36141721 has 16 divisors (see below), whose sum is σ = 45416448. Its totient is φ = 27939600.

The previous prime is 36141713. The next prime is 36141727. The reversal of 36141721 is 12714163.

It is a cyclic number.

It is not a de Polignac number, because 36141721 - 2³ = 36141713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36141727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8296 + ... + 11878.

It is an arithmetic number, because the mean of its divisors is an integer number (2838528).

Almost surely, 2^36141721 is an apocalyptic number.

It is an amenable number.

36141721 is a deficient number, since it is larger than the sum of its proper divisors (9274727).

36141721 is a wasteful number, since it uses less digits than its factorization.

36141721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732.

The product of its digits is 1008, while the sum is 25.

The square root of 36141721 is about 6011.7984829833. The cubic root of 36141721 is about 330.6254468424.

Adding to 36141721 its reverse (12714163), we get a palindrome (48855884).

It can be divided in two parts, 3614 and 1721, that added together give a palindrome (5335).

The spelling of 36141721 in words is "thirty-six million, one hundred forty-one thousand, seven hundred twenty-one".