Search a number
-
+
1244161 = 2714591
BaseRepresentation
bin100101111110000000001
32100012200001
410233300001
5304303121
642400001
713401202
oct4576001
92305601
101244161
1177a836
12500001
133473b9
142455a9
15198991
hex12fc01

1244161 has 4 divisors (see below), whose sum is σ = 1249024. Its totient is φ = 1239300.

The previous prime is 1244153. The next prime is 1244167. The reversal of 1244161 is 1614421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1614421 = 3743633.

It is a cyclic number.

It is not a de Polignac number, because 1244161 - 23 = 1244153 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244167) 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, 2025 + ... + 2566.

It is an arithmetic number, because the mean of its divisors is an integer number (312256).

21244161 is an apocalyptic number.

It is an amenable number.

1244161 is a deficient number, since it is larger than the sum of its proper divisors (4863).

1244161 is an equidigital number, since it uses as much as digits as its factorization.

1244161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862.

The product of its digits is 192, while the sum is 19.

The square root of 1244161 is about 1115.4196519696. The cubic root of 1244161 is about 107.5537427330.

Adding to 1244161 its reverse (1614421), we get a palindrome (2858582).

The spelling of 1244161 in words is "one million, two hundred forty-four thousand, one hundred sixty-one".

Divisors: 1 271 4591 1244161