245005023 has 4 divisors (see below), whose sum is σ = 326673368. Its totient is φ = 163336680.

The previous prime is 245005001. The next prime is 245005051. The reversal of 245005023 is 320500542.

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

It is not a de Polignac number, because 245005023 - 2⁹ = 245004511 is a prime.

It is a super-2 number, since 2×245005023² = 120054922590461058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245005073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40834168 + ... + 40834173.

It is an arithmetic number, because the mean of its divisors is an integer number (81668342).

Almost surely, 2^245005023 is an apocalyptic number.

245005023 is a deficient number, since it is larger than the sum of its proper divisors (81668345).

245005023 is an equidigital number, since it uses as much as digits as its factorization.

245005023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81668344.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 245005023 is about 15652.6362955254. The cubic root of 245005023 is about 625.7367508026.

Adding to 245005023 its reverse (320500542), we get a palindrome (565505565).

The spelling of 245005023 in words is "two hundred forty-five million, five thousand, twenty-three".