864137 has 2 divisors, whose sum is σ = 864138. Its totient is φ = 864136.

The previous prime is 864131. The next prime is 864151. The reversal of 864137 is 731468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 674041 + 190096 = 821^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 864137 - 2⁴ = 864121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (864131) 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, 432068 + 432069.

It is an arithmetic number, because the mean of its divisors is an integer number (432069).

2⁸⁶⁴¹³⁷ is an apocalyptic number.

It is an amenable number.

864137 is a deficient number, since it is larger than the sum of its proper divisors (1).

864137 is an equidigital number, since it uses as much as digits as its factorization.

864137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 864137 is about 929.5896944351. The cubic root of 864137 is about 95.2490969711.

It can be divided in two parts, 864 and 137, that added together give a palindrome (1001).

The spelling of 864137 in words is "eight hundred sixty-four thousand, one hundred thirty-seven".