1238215 has 16 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 879520.

The previous prime is 1238201. The next prime is 1238219. The reversal of 1238215 is 5128321.

It is not a de Polignac number, because 1238215 - 2⁷ = 1238087 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238219) 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 in 15 ways as a sum of consecutive naturals, for example, 2346 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^1238215 is an apocalyptic number.

1238215 is a deficient number, since it is larger than the sum of its proper divisors (420665).

1238215 is a wasteful number, since it uses less digits than its factorization.

1238215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its digits is 480, while the sum is 22.

The square root of 1238215 is about 1112.7510952590. The cubic root of 1238215 is about 107.3821314916.

It can be divided in two parts, 123 and 8215, that added together give a palindrome (8338).

The spelling of 1238215 in words is "one million, two hundred thirty-eight thousand, two hundred fifteen".