5670172181 has 2 divisors, whose sum is σ = 5670172182. Its totient is φ = 5670172180.

The previous prime is 5670172169. The next prime is 5670172201. The reversal of 5670172181 is 1812710765.

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., 3156754225 + 2513417956 = 56185^2 + 50134^2 .

It is a cyclic number.

It is not a de Polignac number, because 5670172181 - 2⁶ = 5670172117 is a prime.

It is a super-2 number, since 2×5670172181² = 64301705124372593522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5670172381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2835086090 + 2835086091.

It is an arithmetic number, because the mean of its divisors is an integer number (2835086091).

Almost surely, 2^5670172181 is an apocalyptic number.

It is an amenable number.

5670172181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5670172181 is an equidigital number, since it uses as much as digits as its factorization.

5670172181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 38.

The square root of 5670172181 is about 75300.5456885938. The cubic root of 5670172181 is about 1783.1946355656.

The spelling of 5670172181 in words is "five billion, six hundred seventy million, one hundred seventy-two thousand, one hundred eighty-one".