133754702821 has 2 divisors, whose sum is σ = 133754702822. Its totient is φ = 133754702820.

The previous prime is 133754702813. The next prime is 133754702869. The reversal of 133754702821 is 128207457331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67865460100 + 65889242721 = 260510^2 + 256689^2 .

It is a cyclic number.

It is not a de Polignac number, because 133754702821 - 2³ = 133754702813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133754702801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66877351410 + 66877351411.

It is an arithmetic number, because the mean of its divisors is an integer number (66877351411).

Almost surely, 2^133754702821 is an apocalyptic number.

It is an amenable number.

133754702821 is a deficient number, since it is larger than the sum of its proper divisors (1).

133754702821 is an equidigital number, since it uses as much as digits as its factorization.

133754702821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 133754702821 in words is "one hundred thirty-three billion, seven hundred fifty-four million, seven hundred two thousand, eight hundred twenty-one".