366401003 has 2 divisors, whose sum is σ = 366401004. Its totient is φ = 366401002.

The previous prime is 366400987. The next prime is 366401023. The reversal of 366401003 is 300104663.

It is a weak prime.

It is an emirp because it is prime and its reverse (300104663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 366401003 - 2⁴ = 366400987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 366401003.

It is not a weakly prime, because it can be changed into another prime (366401023) 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, 183200501 + 183200502.

It is an arithmetic number, because the mean of its divisors is an integer number (183200502).

Almost surely, 2^366401003 is an apocalyptic number.

366401003 is a deficient number, since it is larger than the sum of its proper divisors (1).

366401003 is an equidigital number, since it uses as much as digits as its factorization.

366401003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 366401003 is about 19141.6039819029. The cubic root of 366401003 is about 715.5701537341.

Adding to 366401003 its reverse (300104663), we get a palindrome (666505666).

The spelling of 366401003 in words is "three hundred sixty-six million, four hundred one thousand, three".