1238855 has 4 divisors (see below), whose sum is σ = 1486632. Its totient is φ = 991080.

The previous prime is 1238843. The next prime is 1238863. The reversal of 1238855 is 5588321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1238855 - 2⁸ = 1238599 is a prime.

It is a super-2 number, since 2×1238855² = 3069523422050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123881 + ... + 123890.

It is an arithmetic number, because the mean of its divisors is an integer number (371658).

2^1238855 is an apocalyptic number.

1238855 is a deficient number, since it is larger than the sum of its proper divisors (247777).

1238855 is an equidigital number, since it uses as much as digits as its factorization.

1238855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247776.

The product of its digits is 9600, while the sum is 32.

The square root of 1238855 is about 1113.0386336511. The cubic root of 1238855 is about 107.4006292826.

The spelling of 1238855 in words is "one million, two hundred thirty-eight thousand, eight hundred fifty-five".