931949141 has 2 divisors, whose sum is σ = 931949142. Its totient is φ = 931949140.

The previous prime is 931949093. The next prime is 931949153. The reversal of 931949141 is 141949139.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 658179025 + 273770116 = 25655^2 + 16546^2 .

It is an emirp because it is prime and its reverse (141949139) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 931949141 - 2¹⁸ = 931686997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (931969141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465974570 + 465974571.

It is an arithmetic number, because the mean of its divisors is an integer number (465974571).

Almost surely, 2^931949141 is an apocalyptic number.

It is an amenable number.

931949141 is a deficient number, since it is larger than the sum of its proper divisors (1).

931949141 is an equidigital number, since it uses as much as digits as its factorization.

931949141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 41.

The square root of 931949141 is about 30527.8420626156. The cubic root of 931949141 is about 976.7814517303.

The spelling of 931949141 in words is "nine hundred thirty-one million, nine hundred forty-nine thousand, one hundred forty-one".