245535123 has 4 divisors (see below), whose sum is σ = 327380168. Its totient is φ = 163690080.

The previous prime is 245535113. The next prime is 245535127. The reversal of 245535123 is 321535542.

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

It is not a de Polignac number, because 245535123 - 2⁵ = 245535091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245535127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40922518 + ... + 40922523.

It is an arithmetic number, because the mean of its divisors is an integer number (81845042).

Almost surely, 2^245535123 is an apocalyptic number.

245535123 is a deficient number, since it is larger than the sum of its proper divisors (81845045).

245535123 is an equidigital number, since it uses as much as digits as its factorization.

245535123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81845044.

The product of its digits is 18000, while the sum is 30.

The square root of 245535123 is about 15669.5603958758. The cubic root of 245535123 is about 626.1877131369.

The spelling of 245535123 in words is "two hundred forty-five million, five hundred thirty-five thousand, one hundred twenty-three".