369109421 has 2 divisors, whose sum is σ = 369109422. Its totient is φ = 369109420.

The previous prime is 369109393. The next prime is 369109439. The reversal of 369109421 is 124901963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230128900 + 138980521 = 15170^2 + 11789^2 .

It is an emirp because it is prime and its reverse (124901963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 369109421 - 2¹⁸ = 368847277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (369109441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184554710 + 184554711.

It is an arithmetic number, because the mean of its divisors is an integer number (184554711).

Almost surely, 2^369109421 is an apocalyptic number.

It is an amenable number.

369109421 is a deficient number, since it is larger than the sum of its proper divisors (1).

369109421 is an equidigital number, since it uses as much as digits as its factorization.

369109421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 369109421 is about 19212.2206160558. The cubic root of 369109421 is about 717.3289801093.

The spelling of 369109421 in words is "three hundred sixty-nine million, one hundred nine thousand, four hundred twenty-one".