245471271 has 8 divisors (see below), whose sum is σ = 334258944. Its totient is φ = 160165560.

The previous prime is 245471267. The next prime is 245471287. The reversal of 245471271 is 172174542.

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

It is not a de Polignac number, because 245471271 - 2² = 245471267 is a prime.

It is a super-2 number, since 2×245471271² = 120512289772710882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245471221) 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, 870325 + ... + 870606.

It is an arithmetic number, because the mean of its divisors is an integer number (41782368).

Almost surely, 2^245471271 is an apocalyptic number.

245471271 is a deficient number, since it is larger than the sum of its proper divisors (88787673).

245471271 is a wasteful number, since it uses less digits than its factorization.

245471271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740981.

The product of its digits is 15680, while the sum is 33.

The square root of 245471271 is about 15667.5228099403. The cubic root of 245471271 is about 626.1334278901.

The spelling of 245471271 in words is "two hundred forty-five million, four hundred seventy-one thousand, two hundred seventy-one".