36278189 has 2 divisors, whose sum is σ = 36278190. Its totient is φ = 36278188.

The previous prime is 36278173. The next prime is 36278213. The reversal of 36278189 is 98187263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33582025 + 2696164 = 5795^2 + 1642^2 .

It is a cyclic number.

It is not a de Polignac number, because 36278189 - 2⁴ = 36278173 is a prime.

It is a super-2 number, since 2×36278189² = 2632213994239442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36278149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18139094 + 18139095.

It is an arithmetic number, because the mean of its divisors is an integer number (18139095).

Almost surely, 2^36278189 is an apocalyptic number.

It is an amenable number.

36278189 is a deficient number, since it is larger than the sum of its proper divisors (1).

36278189 is an equidigital number, since it uses as much as digits as its factorization.

36278189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 36278189 is about 6023.1378035041. The cubic root of 36278189 is about 331.0410618306.

The spelling of 36278189 in words is "thirty-six million, two hundred seventy-eight thousand, one hundred eighty-nine".