133055401 has 2 divisors, whose sum is σ = 133055402. Its totient is φ = 133055400.

The previous prime is 133055399. The next prime is 133055407. The reversal of 133055401 is 104550331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116122176 + 16933225 = 10776^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 133055401 - 2¹ = 133055399 is a prime.

Together with 133055399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (133055407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66527700 + 66527701.

It is an arithmetic number, because the mean of its divisors is an integer number (66527701).

Almost surely, 2^133055401 is an apocalyptic number.

It is an amenable number.

133055401 is a deficient number, since it is larger than the sum of its proper divisors (1).

133055401 is an equidigital number, since it uses as much as digits as its factorization.

133055401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 133055401 is about 11534.9642825628. The cubic root of 133055401 is about 510.5177377177.

The spelling of 133055401 in words is "one hundred thirty-three million, fifty-five thousand, four hundred one".