245486173 has 2 divisors, whose sum is σ = 245486174. Its totient is φ = 245486172.

The previous prime is 245486167. The next prime is 245486243. The reversal of 245486173 is 371684542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179908569 + 65577604 = 13413^2 + 8098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245486173 is a prime.

It is a super-2 number, since 2×245486173² = 120526922268371858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245486573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122743086 + 122743087.

It is an arithmetic number, because the mean of its divisors is an integer number (122743087).

Almost surely, 2^245486173 is an apocalyptic number.

It is an amenable number.

245486173 is a deficient number, since it is larger than the sum of its proper divisors (1).

245486173 is an equidigital number, since it uses as much as digits as its factorization.

245486173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 40.

The square root of 245486173 is about 15667.9983724789. The cubic root of 245486173 is about 626.1460980103.

The spelling of 245486173 in words is "two hundred forty-five million, four hundred eighty-six thousand, one hundred seventy-three".