1248161 has 4 divisors (see below), whose sum is σ = 1277232. Its totient is φ = 1219092.

The previous prime is 1248151. The next prime is 1248193. The reversal of 1248161 is 1618421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1248161 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1248101) 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, 14471 + ... + 14556.

It is an arithmetic number, because the mean of its divisors is an integer number (319308).

2^1248161 is an apocalyptic number.

It is an amenable number.

1248161 is a deficient number, since it is larger than the sum of its proper divisors (29071).

1248161 is an equidigital number, since it uses as much as digits as its factorization.

1248161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29070.

The product of its digits is 384, while the sum is 23.

The square root of 1248161 is about 1117.2112602368. The cubic root of 1248161 is about 107.6688818356.

The spelling of 1248161 in words is "one million, two hundred forty-eight thousand, one hundred sixty-one".