1248355 has 4 divisors (see below), whose sum is σ = 1498032. Its totient is φ = 998680.

The previous prime is 1248353. The next prime is 1248383. The reversal of 1248355 is 5538421.

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

It is not a de Polignac number, because 1248355 - 2¹ = 1248353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124831 + ... + 124840.

It is an arithmetic number, because the mean of its divisors is an integer number (374508).

2^1248355 is an apocalyptic number.

1248355 is a deficient number, since it is larger than the sum of its proper divisors (249677).

1248355 is an equidigital number, since it uses as much as digits as its factorization.

1248355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249676.

The product of its digits is 4800, while the sum is 28.

The square root of 1248355 is about 1117.2980801917. The cubic root of 1248355 is about 107.6744598235.

The spelling of 1248355 in words is "one million, two hundred forty-eight thousand, three hundred fifty-five".