245040334571 has 4 divisors (see below), whose sum is σ = 245053875144. Its totient is φ = 245026794000.

The previous prime is 245040334549. The next prime is 245040334589. The reversal of 245040334571 is 175433040542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245040334571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245040330571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6743105 + ... + 6779346.

It is an arithmetic number, because the mean of its divisors is an integer number (61263468786).

Almost surely, 2^245040334571 is an apocalyptic number.

245040334571 is a deficient number, since it is larger than the sum of its proper divisors (13540573).

245040334571 is a wasteful number, since it uses less digits than its factorization.

245040334571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13540572.

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 245040334571 in words is "two hundred forty-five billion, forty million, three hundred thirty-four thousand, five hundred seventy-one".