133573126553 has 2 divisors, whose sum is σ = 133573126554. Its totient is φ = 133573126552.

The previous prime is 133573126487. The next prime is 133573126567. The reversal of 133573126553 is 355621375331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104916392464 + 28656734089 = 323908^2 + 169283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133573126553 is a prime.

It is not a weakly prime, because it can be changed into another prime (133573120553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66786563276 + 66786563277.

It is an arithmetic number, because the mean of its divisors is an integer number (66786563277).

Almost surely, 2^133573126553 is an apocalyptic number.

It is an amenable number.

133573126553 is a deficient number, since it is larger than the sum of its proper divisors (1).

133573126553 is an equidigital number, since it uses as much as digits as its factorization.

133573126553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 850500, while the sum is 44.

The spelling of 133573126553 in words is "one hundred thirty-three billion, five hundred seventy-three million, one hundred twenty-six thousand, five hundred fifty-three".