245311023 has 8 divisors (see below), whose sum is σ = 327726000. Its totient is φ = 163218368.

The previous prime is 245311019. The next prime is 245311039. The reversal of 245311023 is 320113542.

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 245311023 - 2² = 245311019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245311013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78798 + ... + 81851.

It is an arithmetic number, because the mean of its divisors is an integer number (40965750).

Almost surely, 2^245311023 is an apocalyptic number.

245311023 is a deficient number, since it is larger than the sum of its proper divisors (82414977).

245311023 is a wasteful number, since it uses less digits than its factorization.

245311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161161.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 245311023 is about 15662.4079566330. The cubic root of 245311023 is about 625.9971478943.

Adding to 245311023 its reverse (320113542), we get a palindrome (565424565).

The spelling of 245311023 in words is "two hundred forty-five million, three hundred eleven thousand, twenty-three".