33157133 has 2 divisors, whose sum is σ = 33157134. Its totient is φ = 33157132.

The previous prime is 33157127. The next prime is 33157141. The reversal of 33157133 is 33175133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19333609 + 13823524 = 4397^2 + 3718^2 .

It is an emirp because it is prime and its reverse (33175133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33157133 - 2¹⁴ = 33140749 is a prime.

It is a super-3 number, since 3×33157133³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33157153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16578566 + 16578567.

It is an arithmetic number, because the mean of its divisors is an integer number (16578567).

Almost surely, 2^33157133 is an apocalyptic number.

It is an amenable number.

33157133 is a deficient number, since it is larger than the sum of its proper divisors (1).

33157133 is an equidigital number, since it uses as much as digits as its factorization.

33157133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835, while the sum is 26.

The square root of 33157133 is about 5758.2230766097. The cubic root of 33157133 is about 321.2617275819.

The spelling of 33157133 in words is "thirty-three million, one hundred fifty-seven thousand, one hundred thirty-three".