67572133 has 2 divisors, whose sum is σ = 67572134. Its totient is φ = 67572132.

The previous prime is 67572107. The next prime is 67572143. The reversal of 67572133 is 33127576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65561409 + 2010724 = 8097^2 + 1418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67572133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67572103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33786066 + 33786067.

It is an arithmetic number, because the mean of its divisors is an integer number (33786067).

Almost surely, 2^67572133 is an apocalyptic number.

It is an amenable number.

67572133 is a deficient number, since it is larger than the sum of its proper divisors (1).

67572133 is an equidigital number, since it uses as much as digits as its factorization.

67572133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 34.

The square root of 67572133 is about 8220.2270649904. The cubic root of 67572133 is about 407.3076272161.

The spelling of 67572133 in words is "sixty-seven million, five hundred seventy-two thousand, one hundred thirty-three".