133772801 has 2 divisors, whose sum is σ = 133772802. Its totient is φ = 133772800.

The previous prime is 133772789. The next prime is 133772819. The reversal of 133772801 is 108277331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132802576 + 970225 = 11524^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 133772801 - 2¹⁴ = 133756417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133772831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66886400 + 66886401.

It is an arithmetic number, because the mean of its divisors is an integer number (66886401).

Almost surely, 2^133772801 is an apocalyptic number.

It is an amenable number.

133772801 is a deficient number, since it is larger than the sum of its proper divisors (1).

133772801 is an equidigital number, since it uses as much as digits as its factorization.

133772801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 133772801 is about 11566.0192374040. The cubic root of 133772801 is about 511.4336197580.

The spelling of 133772801 in words is "one hundred thirty-three million, seven hundred seventy-two thousand, eight hundred one".