203254200145 has 8 divisors (see below), whose sum is σ = 243910481256. Its totient is φ = 162599732736.

The previous prime is 203254200113. The next prime is 203254200169. The reversal of 203254200145 is 541002452302.

It can be written as a sum of positive squares in 4 ways, for example, as 29953729 + 203224246416 = 5473^2 + 450804^2 .

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 203254200145 - 2⁵ = 203254200113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193312 + ... + 666241.

It is an arithmetic number, because the mean of its divisors is an integer number (30488810157).

Almost surely, 2^203254200145 is an apocalyptic number.

It is an amenable number.

203254200145 is a deficient number, since it is larger than the sum of its proper divisors (40656281111).

203254200145 is an equidigital number, since it uses as much as digits as its factorization.

203254200145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906851.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 203254200145 its reverse (541002452302), we get a palindrome (744256652447).

The spelling of 203254200145 in words is "two hundred three billion, two hundred fifty-four million, two hundred thousand, one hundred forty-five".