2239961173 has 2 divisors, whose sum is σ = 2239961174. Its totient is φ = 2239961172.

The previous prime is 2239961083. The next prime is 2239961177. The reversal of 2239961173 is 3711699322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1200414609 + 1039546564 = 34647^2 + 32242^2 .

It is a cyclic number.

It is not a de Polignac number, because 2239961173 - 2⁹ = 2239960661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2239961177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119980586 + 1119980587.

It is an arithmetic number, because the mean of its divisors is an integer number (1119980587).

Almost surely, 2^2239961173 is an apocalyptic number.

It is an amenable number.

2239961173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239961173 is an equidigital number, since it uses as much as digits as its factorization.

2239961173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 2239961173 is about 47328.2280779663. The cubic root of 2239961173 is about 1308.4189641692.

The spelling of 2239961173 in words is "two billion, two hundred thirty-nine million, nine hundred sixty-one thousand, one hundred seventy-three".