133030057 has 2 divisors, whose sum is σ = 133030058. Its totient is φ = 133030056.

The previous prime is 133030043. The next prime is 133030063. The reversal of 133030057 is 750030331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94887081 + 38142976 = 9741^2 + 6176^2 .

It is an emirp because it is prime and its reverse (750030331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133030057 - 2¹⁵ = 132997289 is a prime.

It is not a weakly prime, because it can be changed into another prime (133030097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66515028 + 66515029.

It is an arithmetic number, because the mean of its divisors is an integer number (66515029).

Almost surely, 2^133030057 is an apocalyptic number.

It is an amenable number.

133030057 is a deficient number, since it is larger than the sum of its proper divisors (1).

133030057 is an equidigital number, since it uses as much as digits as its factorization.

133030057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 22.

The square root of 133030057 is about 11533.8656572721. The cubic root of 133030057 is about 510.4853216889.

Adding to 133030057 its reverse (750030331), we get a palindrome (883060388).

The spelling of 133030057 in words is "one hundred thirty-three million, thirty thousand, fifty-seven".