36228131 has 2 divisors, whose sum is σ = 36228132. Its totient is φ = 36228130.

The previous prime is 36228121. The next prime is 36228161. The reversal of 36228131 is 13182263.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36228131 is a prime.

It is a super-2 number, since 2×36228131² = 2624954951506322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36228131.

It is not a weakly prime, because it can be changed into another prime (36228121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18114065 + 18114066.

It is an arithmetic number, because the mean of its divisors is an integer number (18114066).

Almost surely, 2^36228131 is an apocalyptic number.

36228131 is a deficient number, since it is larger than the sum of its proper divisors (1).

36228131 is an equidigital number, since it uses as much as digits as its factorization.

36228131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 36228131 is about 6018.9808938059. The cubic root of 36228131 is about 330.8887308051. Note that the first 3 decimals are identical.

The spelling of 36228131 in words is "thirty-six million, two hundred twenty-eight thousand, one hundred thirty-one".