133320427 has 2 divisors, whose sum is σ = 133320428. Its totient is φ = 133320426.

The previous prime is 133320371. The next prime is 133320433. The reversal of 133320427 is 724023331.

It is a strong prime.

It is an emirp because it is prime and its reverse (724023331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133320427 - 2¹¹ = 133318379 is a prime.

It is not a weakly prime, because it can be changed into another prime (133320497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66660213 + 66660214.

It is an arithmetic number, because the mean of its divisors is an integer number (66660214).

Almost surely, 2^133320427 is an apocalyptic number.

133320427 is a deficient number, since it is larger than the sum of its proper divisors (1).

133320427 is an equidigital number, since it uses as much as digits as its factorization.

133320427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 133320427 is about 11546.4465096410. The cubic root of 133320427 is about 510.8564706555.

Adding to 133320427 its reverse (724023331), we get a palindrome (857343758).

The spelling of 133320427 in words is "one hundred thirty-three million, three hundred twenty thousand, four hundred twenty-seven".