133198733401 has 2 divisors, whose sum is σ = 133198733402. Its totient is φ = 133198733400.

The previous prime is 133198733383. The next prime is 133198733519. The reversal of 133198733401 is 104337891331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132895973401 + 302760000 = 364549^2 + 17400^2 .

It is a cyclic number.

It is not a de Polignac number, because 133198733401 - 2¹⁵ = 133198700633 is a prime.

It is not a weakly prime, because it can be changed into another prime (133198733201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66599366700 + 66599366701.

It is an arithmetic number, because the mean of its divisors is an integer number (66599366701).

Almost surely, 2^133198733401 is an apocalyptic number.

It is an amenable number.

133198733401 is a deficient number, since it is larger than the sum of its proper divisors (1).

133198733401 is an equidigital number, since it uses as much as digits as its factorization.

133198733401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 133198733401 in words is "one hundred thirty-three billion, one hundred ninety-eight million, seven hundred thirty-three thousand, four hundred one".