245020071 has 12 divisors (see below), whose sum is σ = 333801272. Its totient is φ = 159866928.

The previous prime is 245020051. The next prime is 245020091. The reversal of 245020071 is 170020542.

It is an interprime number because it is at equal distance from previous prime (245020051) and next prime (245020091).

It is not a de Polignac number, because 245020071 - 2⁹ = 245019559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245020021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11860 + ... + 25113.

Almost surely, 2^245020071 is an apocalyptic number.

245020071 is a deficient number, since it is larger than the sum of its proper divisors (88781201).

245020071 is an equidigital number, since it uses as much as digits as its factorization.

245020071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37070 (or 37023 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 245020071 is about 15653.1169739448. The cubic root of 245020071 is about 625.7495612799.

The spelling of 245020071 in words is "two hundred forty-five million, twenty thousand, seventy-one".