369121939 has 2 divisors, whose sum is σ = 369121940. Its totient is φ = 369121938.

The previous prime is 369121927. The next prime is 369121967. The reversal of 369121939 is 939121963.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 369121939 - 2⁹ = 369121427 is a prime.

It is a super-2 number, since 2×369121939² = 272502011702239442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 369121895 and 369121904.

It is not a weakly prime, because it can be changed into another prime (369121979) 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, 184560969 + 184560970.

It is an arithmetic number, because the mean of its divisors is an integer number (184560970).

Almost surely, 2^369121939 is an apocalyptic number.

369121939 is a deficient number, since it is larger than the sum of its proper divisors (1).

369121939 is an equidigital number, since it uses as much as digits as its factorization.

369121939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 43.

The square root of 369121939 is about 19212.5463955198. The cubic root of 369121939 is about 717.3370891976.

The spelling of 369121939 in words is "three hundred sixty-nine million, one hundred twenty-one thousand, nine hundred thirty-nine".