245344523 has 4 divisors (see below), whose sum is σ = 245470848. Its totient is φ = 245218200.

The previous prime is 245344471. The next prime is 245344537. The reversal of 245344523 is 325443542.

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

It is a cyclic number.

It is not a de Polignac number, because 245344523 - 2¹⁰ = 245343499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245344523.

It is not an unprimeable number, because it can be changed into a prime (245344423) 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, 60203 + ... + 64148.

It is an arithmetic number, because the mean of its divisors is an integer number (61367712).

Almost surely, 2^245344523 is an apocalyptic number.

245344523 is a deficient number, since it is larger than the sum of its proper divisors (126325).

245344523 is a wasteful number, since it uses less digits than its factorization.

245344523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126324.

The product of its digits is 57600, while the sum is 32.

The square root of 245344523 is about 15663.4773597691. The cubic root of 245344523 is about 626.0256422654.

The spelling of 245344523 in words is "two hundred forty-five million, three hundred forty-four thousand, five hundred twenty-three".