245644543 has 8 divisors (see below), whose sum is σ = 262144512. Its totient is φ = 229372416.

The previous prime is 245644541. The next prime is 245644561. The reversal of 245644543 is 345446542.

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 245644543 - 2¹ = 245644541 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 (245644541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54730 + ... + 59047.

It is an arithmetic number, because the mean of its divisors is an integer number (32768064).

Almost surely, 2^245644543 is an apocalyptic number.

245644543 is a deficient number, since it is larger than the sum of its proper divisors (16499969).

245644543 is a wasteful number, since it uses less digits than its factorization.

245644543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113921.

The product of its digits is 230400, while the sum is 37.

The square root of 245644543 is about 15673.0514897387. The cubic root of 245644543 is about 626.2807171890.

The spelling of 245644543 in words is "two hundred forty-five million, six hundred forty-four thousand, five hundred forty-three".