36143121 has 16 divisors (see below), whose sum is σ = 55369728. Its totient is φ = 20542800.

The previous prime is 36143119. The next prime is 36143123. The reversal of 36143121 is 12134163.

It is an interprime number because it is at equal distance from previous prime (36143119) and next prime (36143123).

It is not a de Polignac number, because 36143121 - 2¹ = 36143119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (36143123) 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, 495 + ... + 8516.

It is an arithmetic number, because the mean of its divisors is an integer number (3460608).

Almost surely, 2^36143121 is an apocalyptic number.

It is an amenable number.

36143121 is a deficient number, since it is larger than the sum of its proper divisors (19226607).

36143121 is a wasteful number, since it uses less digits than its factorization.

36143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212.

The product of its digits is 432, while the sum is 21.

The square root of 36143121 is about 6011.9149195577. The cubic root of 36143121 is about 330.6297158667.

Adding to 36143121 its reverse (12134163), we get a palindrome (48277284).

The spelling of 36143121 in words is "thirty-six million, one hundred forty-three thousand, one hundred twenty-one".