27631133 has 2 divisors, whose sum is σ = 27631134. Its totient is φ = 27631132.

The previous prime is 27631091. The next prime is 27631139. The reversal of 27631133 is 33113672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26604964 + 1026169 = 5158^2 + 1013^2 .

It is a cyclic number.

It is not a de Polignac number, because 27631133 - 2¹⁸ = 27368989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27631139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13815566 + 13815567.

It is an arithmetic number, because the mean of its divisors is an integer number (13815567).

Almost surely, 2^27631133 is an apocalyptic number.

It is an amenable number.

27631133 is a deficient number, since it is larger than the sum of its proper divisors (1).

27631133 is an equidigital number, since it uses as much as digits as its factorization.

27631133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 26.

The square root of 27631133 is about 5256.5324121516. The cubic root of 27631133 is about 302.3195490485.

The spelling of 27631133 in words is "twenty-seven million, six hundred thirty-one thousand, one hundred thirty-three".