36400121 has 2 divisors, whose sum is σ = 36400122. Its totient is φ = 36400120.

The previous prime is 36400093. The next prime is 36400141. The reversal of 36400121 is 12100463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34810000 + 1590121 = 5900^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 36400121 - 2⁶ = 36400057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36400121.

It is not a weakly prime, because it can be changed into another prime (36400141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18200060 + 18200061.

It is an arithmetic number, because the mean of its divisors is an integer number (18200061).

Almost surely, 2^36400121 is an apocalyptic number.

It is an amenable number.

36400121 is a deficient number, since it is larger than the sum of its proper divisors (1).

36400121 is an equidigital number, since it uses as much as digits as its factorization.

36400121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 36400121 is about 6033.2512793684. The cubic root of 36400121 is about 331.4115264913.

Adding to 36400121 its reverse (12100463), we get a palindrome (48500584).

The spelling of 36400121 in words is "thirty-six million, four hundred thousand, one hundred twenty-one".