36152721 has 12 divisors (see below), whose sum is σ = 56968080. Its totient is φ = 21910680.

The previous prime is 36152719. The next prime is 36152741. The reversal of 36152721 is 12725163.

It is a happy number.

36152721 is a `hidden beast` number, since 3 + 615 + 27 + 21 = 666.

It is not a de Polignac number, because 36152721 - 2¹ = 36152719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36152741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182491 + ... + 182688.

It is an arithmetic number, because the mean of its divisors is an integer number (4747340).

Almost surely, 2^36152721 is an apocalyptic number.

It is an amenable number.

36152721 is a deficient number, since it is larger than the sum of its proper divisors (20815359).

36152721 is a wasteful number, since it uses less digits than its factorization.

36152721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365196 (or 365193 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 36152721 is about 6012.7132810404. The cubic root of 36152721 is about 330.6589862064.

Adding to 36152721 its reverse (12725163), we get a palindrome (48877884).

It can be divided in two parts, 3615 and 2721, that added together give a palindrome (6336).

The spelling of 36152721 in words is "thirty-six million, one hundred fifty-two thousand, seven hundred twenty-one".