203454125245 has 80 divisors (see below), whose sum is σ = 304306914240. Its totient is φ = 130186248192.

The previous prime is 203454125209. The next prime is 203454125249. The reversal of 203454125245 is 542521454302.

It is not a de Polignac number, because 203454125245 - 2²⁵ = 203420570813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203454125249) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15275709 + ... + 15289021.

It is an arithmetic number, because the mean of its divisors is an integer number (3803836428).

Almost surely, 2^203454125245 is an apocalyptic number.

It is an amenable number.

203454125245 is a deficient number, since it is larger than the sum of its proper divisors (100852788995).

203454125245 is an equidigital number, since it uses as much as digits as its factorization.

203454125245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13432 (or 13411 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 203454125245 its reverse (542521454302), we get a palindrome (745975579547).

The spelling of 203454125245 in words is "two hundred three billion, four hundred fifty-four million, one hundred twenty-five thousand, two hundred forty-five".