245470071 has 32 divisors (see below), whose sum is σ = 411840000. Its totient is φ = 126334080.

The previous prime is 245470067. The next prime is 245470081. The reversal of 245470071 is 170074542.

It is not a de Polignac number, because 245470071 - 2² = 245470067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245470051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20305 + ... + 30053.

It is an arithmetic number, because the mean of its divisors is an integer number (12870000).

Almost surely, 2^245470071 is an apocalyptic number.

245470071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

245470071 is a deficient number, since it is larger than the sum of its proper divisors (166369929).

245470071 is a wasteful number, since it uses less digits than its factorization.

245470071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9879.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 245470071 is about 15667.4845141139. The cubic root of 245470071 is about 626.1324075924.

The spelling of 245470071 in words is "two hundred forty-five million, four hundred seventy thousand, seventy-one".