245155515323 has 4 divisors (see below), whose sum is σ = 245190261720. Its totient is φ = 245120768928.

The previous prime is 245155515307. The next prime is 245155515347. The reversal of 245155515323 is 323515551542.

245155515323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 245155515323 - 2⁴ = 245155515307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245155515223) 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, 17362613 + ... + 17376726.

It is an arithmetic number, because the mean of its divisors is an integer number (61297565430).

Almost surely, 2^245155515323 is an apocalyptic number.

245155515323 is a deficient number, since it is larger than the sum of its proper divisors (34746397).

245155515323 is an equidigital number, since it uses as much as digits as its factorization.

245155515323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34746396.

The product of its digits is 450000, while the sum is 41.

The spelling of 245155515323 in words is "two hundred forty-five billion, one hundred fifty-five million, five hundred fifteen thousand, three hundred twenty-three".