366672121 has 2 divisors, whose sum is σ = 366672122. Its totient is φ = 366672120.

The previous prime is 366672107. The next prime is 366672149. The reversal of 366672121 is 121276663.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242238096 + 124434025 = 15564^2 + 11155^2 .

It is an emirp because it is prime and its reverse (121276663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 366672121 - 2⁷ = 366671993 is a prime.

It is not a weakly prime, because it can be changed into another prime (366672161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183336060 + 183336061.

It is an arithmetic number, because the mean of its divisors is an integer number (183336061).

Almost surely, 2^366672121 is an apocalyptic number.

It is an amenable number.

366672121 is a deficient number, since it is larger than the sum of its proper divisors (1).

366672121 is an equidigital number, since it uses as much as digits as its factorization.

366672121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 366672121 is about 19148.6845762313. The cubic root of 366672121 is about 715.7466053231.

The spelling of 366672121 in words is "three hundred sixty-six million, six hundred seventy-two thousand, one hundred twenty-one".