133531783025 has 6 divisors (see below), whose sum is σ = 165579410982. Its totient is φ = 106825426400.

The previous prime is 133531783013. The next prime is 133531783043. The reversal of 133531783025 is 520387135331.

It can be written as a sum of positive squares in 3 ways, for example, as 508186849 + 133023596176 = 22543^2 + 364724^2 .

It is not a de Polignac number, because 133531783025 - 2⁴ = 133531783009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2670635636 + ... + 2670635685.

It is an arithmetic number, because the mean of its divisors is an integer number (27596568497).

Almost surely, 2^133531783025 is an apocalyptic number.

It is an amenable number.

133531783025 is a deficient number, since it is larger than the sum of its proper divisors (32047627957).

133531783025 is an equidigital number, since it uses as much as digits as its factorization.

133531783025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5341271331 (or 5341271326 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 133531783025 in words is "one hundred thirty-three billion, five hundred thirty-one million, seven hundred eighty-three thousand, twenty-five".