941404561 has 2 divisors, whose sum is σ = 941404562. Its totient is φ = 941404560.

The previous prime is 941404553. The next prime is 941404577. The reversal of 941404561 is 165404149.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 778689025 + 162715536 = 27905^2 + 12756^2 .

It is a cyclic number.

It is not a de Polignac number, because 941404561 - 2³ = 941404553 is a prime.

It is not a weakly prime, because it can be changed into another prime (941401561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470702280 + 470702281.

It is an arithmetic number, because the mean of its divisors is an integer number (470702281).

Almost surely, 2^941404561 is an apocalyptic number.

It is an amenable number.

941404561 is a deficient number, since it is larger than the sum of its proper divisors (1).

941404561 is an equidigital number, since it uses as much as digits as its factorization.

941404561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 941404561 is about 30682.3167475991. The cubic root of 941404561 is about 980.0737696100.

The spelling of 941404561 in words is "nine hundred forty-one million, four hundred four thousand, five hundred sixty-one".