1248155 has 8 divisors (see below), whose sum is σ = 1512432. Its totient is φ = 988768.

The previous prime is 1248151. The next prime is 1248193. The reversal of 1248155 is 5518421.

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

It is a cyclic number.

It is not a de Polignac number, because 1248155 - 2² = 1248151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248151) 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 7 ways as a sum of consecutive naturals, for example, 632 + ... + 1701.

It is an arithmetic number, because the mean of its divisors is an integer number (189054).

2^1248155 is an apocalyptic number.

1248155 is a deficient number, since it is larger than the sum of its proper divisors (264277).

1248155 is a wasteful number, since it uses less digits than its factorization.

1248155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445.

The product of its digits is 1600, while the sum is 26.

The square root of 1248155 is about 1117.2085749760. The cubic root of 1248155 is about 107.6687093113.

The spelling of 1248155 in words is "one million, two hundred forty-eight thousand, one hundred fifty-five".