1238505 has 8 divisors (see below), whose sum is σ = 1981632. Its totient is φ = 660528.

The previous prime is 1238491. The next prime is 1238509. The reversal of 1238505 is 5058321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1238505 - 2⁹ = 1237993 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1238509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41269 + ... + 41298.

It is an arithmetic number, because the mean of its divisors is an integer number (247704).

2^1238505 is an apocalyptic number.

1238505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1238505 is a deficient number, since it is larger than the sum of its proper divisors (743127).

1238505 is an equidigital number, since it uses as much as digits as its factorization.

1238505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82575.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1238505 is about 1112.8813952978. The cubic root of 1238505 is about 107.3905140927.

The spelling of 1238505 in words is "one million, two hundred thirty-eight thousand, five hundred five".