203581331485249 has 9 divisors (see below), whose sum is σ = 203831402681257. Its totient is φ = 203331566766784.

The previous prime is 203581331485243. The next prime is 203581331485277. The reversal of 203581331485249 is 942584133185302.

The square root of 203581331485249 is 14268193.

It is a perfect power (a square), and thus also a powerful number.

203581331485249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 103832533530625 + 99748797954624 = 10189825^2 + 9987432^2 .

It is not a de Polignac number, because 203581331485249 - 2¹³ = 203581331477057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203581331485193 and 203581331485202.

It is not an unprimeable number, because it can be changed into a prime (203581331485243) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12227833077 + ... + 12227849725.

Almost surely, 2^{203581331485249} is an apocalyptic number.

203581331485249 is the 14268193-rd square number.

203581331485249 is the 7134097-th centered octagonal number.

It is an amenable number.

203581331485249 is a deficient number, since it is larger than the sum of its proper divisors (250071196008).

203581331485249 is an frugal number, since it uses more digits than its factorization.

203581331485249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35012 (or 17506 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 203581331485249 in words is "two hundred three trillion, five hundred eighty-one billion, three hundred thirty-one million, four hundred eighty-five thousand, two hundred forty-nine".