245041523 has 4 divisors (see below), whose sum is σ = 245449848. Its totient is φ = 244633200.

The previous prime is 245041487. The next prime is 245041529. The reversal of 245041523 is 325140542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325140542 = 2 ⋅162570271.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245041523 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 245041492 and 245041501.

It is not an unprimeable number, because it can be changed into a prime (245041529) 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, 203261 + ... + 204462.

It is an arithmetic number, because the mean of its divisors is an integer number (61362462).

Almost surely, 2^245041523 is an apocalyptic number.

245041523 is a deficient number, since it is larger than the sum of its proper divisors (408325).

245041523 is an equidigital number, since it uses as much as digits as its factorization.

245041523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408324.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 245041523 is about 15653.8021898835. The cubic root of 245041523 is about 625.7678226245.

The spelling of 245041523 in words is "two hundred forty-five million, forty-one thousand, five hundred twenty-three".