441155431 has 2 divisors, whose sum is σ = 441155432. Its totient is φ = 441155430.

The previous prime is 441155417. The next prime is 441155437. The reversal of 441155431 is 134551144.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 441155431 - 2¹⁵ = 441122663 is a prime.

It is a super-2 number, since 2×441155431² = 389236228601591522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 441155431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441155437) 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, 220577715 + 220577716.

It is an arithmetic number, because the mean of its divisors is an integer number (220577716).

Almost surely, 2^441155431 is an apocalyptic number.

441155431 is a deficient number, since it is larger than the sum of its proper divisors (1).

441155431 is an equidigital number, since it uses as much as digits as its factorization.

441155431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 28.

The square root of 441155431 is about 21003.7004120703. The cubic root of 441155431 is about 761.2556752641.

The spelling of 441155431 in words is "four hundred forty-one million, one hundred fifty-five thousand, four hundred thirty-one".