941981 has 2 divisors, whose sum is σ = 941982. Its totient is φ = 941980.

The previous prime is 941971. The next prime is 941989. The reversal of 941981 is 189149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538756 + 403225 = 734^2 + 635^2 .

It is an emirp because it is prime and its reverse (189149) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 941981 - 2¹⁰ = 940957 is a prime.

It is a super-2 number, since 2×941981² = 1774656408722, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 941981.

It is not a weakly prime, because it can be changed into another prime (941989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470990 + 470991.

It is an arithmetic number, because the mean of its divisors is an integer number (470991).

2⁹⁴¹⁹⁸¹ is an apocalyptic number.

It is an amenable number.

941981 is a deficient number, since it is larger than the sum of its proper divisors (1).

941981 is an equidigital number, since it uses as much as digits as its factorization.

941981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 32.

The square root of 941981 is about 970.5570565402. The cubic root of 941981 is about 98.0273767746.

The spelling of 941981 in words is "nine hundred forty-one thousand, nine hundred eighty-one".