401183899 has 2 divisors, whose sum is σ = 401183900. Its totient is φ = 401183898.

The previous prime is 401183863. The next prime is 401183921. The reversal of 401183899 is 998381104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401183899 - 2¹⁵ = 401151131 is a prime.

It is not a weakly prime, because it can be changed into another prime (401183819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200591949 + 200591950.

It is an arithmetic number, because the mean of its divisors is an integer number (200591950).

Almost surely, 2^401183899 is an apocalyptic number.

401183899 is a deficient number, since it is larger than the sum of its proper divisors (1).

401183899 is an equidigital number, since it uses as much as digits as its factorization.

401183899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 401183899 is about 20029.5756070866. The cubic root of 401183899 is about 737.5325039394.

The spelling of 401183899 in words is "four hundred one million, one hundred eighty-three thousand, eight hundred ninety-nine".