203448497461 has 12 divisors (see below), whose sum is σ = 224585003916. Its totient is φ = 184159363520.

The previous prime is 203448497449. The next prime is 203448497479. The reversal of 203448497461 is 164794844302.

It can be written as a sum of positive squares in 2 ways, for example, as 144772640100 + 58675857361 = 380490^2 + 242231^2 .

It is not a de Polignac number, because 203448497461 - 2¹¹ = 203448495413 is a prime.

It is a super-2 number, since 2×203448497461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203448497399 and 203448497408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203448491461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3579946 + ... + 3636331.

It is an arithmetic number, because the mean of its divisors is an integer number (18715416993).

Almost surely, 2^203448497461 is an apocalyptic number.

It is an amenable number.

203448497461 is a deficient number, since it is larger than the sum of its proper divisors (21136506455).

203448497461 is a wasteful number, since it uses less digits than its factorization.

203448497461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7216532 (or 7216521 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 203448497461 in words is "two hundred three billion, four hundred forty-eight million, four hundred ninety-seven thousand, four hundred sixty-one".