1238715 has 12 divisors (see below), whose sum is σ = 2147184. Its totient is φ = 660624.

The previous prime is 1238693. The next prime is 1238717. The reversal of 1238715 is 5178321.

It is not a de Polignac number, because 1238715 - 2⁵ = 1238683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1238717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13719 + ... + 13808.

It is an arithmetic number, because the mean of its divisors is an integer number (178932).

2^1238715 is an apocalyptic number.

1238715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1238715 is a deficient number, since it is larger than the sum of its proper divisors (908469).

1238715 is a wasteful number, since it uses less digits than its factorization.

1238715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27538 (or 27535 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1238715 is about 1112.9757409755. The cubic root of 1238715 is about 107.3965834353.

It can be divided in two parts, 1238 and 715, that added together give a triangular number (1953 = T₆₂).

The spelling of 1238715 in words is "one million, two hundred thirty-eight thousand, seven hundred fifteen".