36231439 has 2 divisors, whose sum is σ = 36231440. Its totient is φ = 36231438.

The previous prime is 36231421. The next prime is 36231493. The reversal of 36231439 is 93413263.

Together with next prime (36231493) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36231439 - 2¹⁹ = 35707151 is a prime.

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 36231439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36232439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18115719 + 18115720.

It is an arithmetic number, because the mean of its divisors is an integer number (18115720).

Almost surely, 2^36231439 is an apocalyptic number.

36231439 is a deficient number, since it is larger than the sum of its proper divisors (1).

36231439 is an equidigital number, since it uses as much as digits as its factorization.

36231439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 31.

The square root of 36231439 is about 6019.2556848833. The cubic root of 36231439 is about 330.8988016771.

The spelling of 36231439 in words is "thirty-six million, two hundred thirty-one thousand, four hundred thirty-nine".