133603617971 has 2 divisors, whose sum is σ = 133603617972. Its totient is φ = 133603617970.

The previous prime is 133603617913. The next prime is 133603617991. The reversal of 133603617971 is 179716306331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133603617971 - 2³⁰ = 132529876147 is a prime.

It is not a weakly prime, because it can be changed into another prime (133603617911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66801808985 + 66801808986.

It is an arithmetic number, because the mean of its divisors is an integer number (66801808986).

Almost surely, 2^133603617971 is an apocalyptic number.

133603617971 is a deficient number, since it is larger than the sum of its proper divisors (1).

133603617971 is an equidigital number, since it uses as much as digits as its factorization.

133603617971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 47.

The spelling of 133603617971 in words is "one hundred thirty-three billion, six hundred three million, six hundred seventeen thousand, nine hundred seventy-one".