245123171 has 8 divisors (see below), whose sum is σ = 248206560. Its totient is φ = 242051328.

The previous prime is 245123159. The next prime is 245123173. The reversal of 245123171 is 171321542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245123171 - 2¹⁰ = 245122147 is a prime.

It is a super-2 number, since 2×245123171² = 120170737922190482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245123171.

It is not an unprimeable number, because it can be changed into a prime (245123173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44645 + ... + 49833.

It is an arithmetic number, because the mean of its divisors is an integer number (31025820).

Almost surely, 2^245123171 is an apocalyptic number.

245123171 is a deficient number, since it is larger than the sum of its proper divisors (3083389).

245123171 is an equidigital number, since it uses as much as digits as its factorization.

245123171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773.

The product of its digits is 1680, while the sum is 26.

The square root of 245123171 is about 15656.4099013791. The cubic root of 245123171 is about 625.8373169928.

The spelling of 245123171 in words is "two hundred forty-five million, one hundred twenty-three thousand, one hundred seventy-one".