441161531 has 2 divisors, whose sum is σ = 441161532. Its totient is φ = 441161530.

The previous prime is 441161503. The next prime is 441161537. The reversal of 441161531 is 135161144.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 441161531 - 2¹⁰ = 441160507 is a prime.

It is a super-2 number, since 2×441161531² = 389246992868527922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 441161531.

It is not a weakly prime, because it can be changed into another prime (441161537) 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, 220580765 + 220580766.

It is an arithmetic number, because the mean of its divisors is an integer number (220580766).

Almost surely, 2^441161531 is an apocalyptic number.

441161531 is a deficient number, since it is larger than the sum of its proper divisors (1).

441161531 is an equidigital number, since it uses as much as digits as its factorization.

441161531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 441161531 is about 21003.8456240756. The cubic root of 441161531 is about 761.2591839581.

The spelling of 441161531 in words is "four hundred forty-one million, one hundred sixty-one thousand, five hundred thirty-one".