36231257 has 2 divisors, whose sum is σ = 36231258. Its totient is φ = 36231256.

The previous prime is 36231227. The next prime is 36231259. The reversal of 36231257 is 75213263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30680521 + 5550736 = 5539^2 + 2356^2 .

It is a cyclic number.

It is not a de Polignac number, because 36231257 - 2⁶ = 36231193 is a prime.

Together with 36231259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36231259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18115628 + 18115629.

It is an arithmetic number, because the mean of its divisors is an integer number (18115629).

Almost surely, 2^36231257 is an apocalyptic number.

It is an amenable number.

36231257 is a deficient number, since it is larger than the sum of its proper divisors (1).

36231257 is an equidigital number, since it uses as much as digits as its factorization.

36231257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 29.

The square root of 36231257 is about 6019.2405667160. The cubic root of 36231257 is about 330.8982476124.

The spelling of 36231257 in words is "thirty-six million, two hundred thirty-one thousand, two hundred fifty-seven".