365804381 has 2 divisors, whose sum is σ = 365804382. Its totient is φ = 365804380.

The previous prime is 365804339. The next prime is 365804393. The reversal of 365804381 is 183408563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212168356 + 153636025 = 14566^2 + 12395^2 .

It is a cyclic number.

It is not a de Polignac number, because 365804381 - 2¹⁰ = 365803357 is a prime.

It is a super-2 number, since 2×365804381² = 267625690317586322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (365804281) 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, 182902190 + 182902191.

It is an arithmetic number, because the mean of its divisors is an integer number (182902191).

Almost surely, 2^365804381 is an apocalyptic number.

It is an amenable number.

365804381 is a deficient number, since it is larger than the sum of its proper divisors (1).

365804381 is an equidigital number, since it uses as much as digits as its factorization.

365804381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 365804381 is about 19126.0132019195. The cubic root of 365804381 is about 715.1815477827.

The spelling of 365804381 in words is "three hundred sixty-five million, eight hundred four thousand, three hundred eighty-one".