Search a number
-
+
1214149 = 9712517
BaseRepresentation
bin100101000011011000101
32021200111111
410220123011
5302323044
642005021
713214536
oct4503305
92250444
101214149
1175a232
124a6771
13336841
1423868d
1518eb34
hex1286c5

1214149 has 4 divisors (see below), whose sum is σ = 1226764. Its totient is φ = 1201536.

The previous prime is 1214141. The next prime is 1214159. The reversal of 1214149 is 9414121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9414121 = 73912739.

It can be written as a sum of positive squares in 2 ways, for example, as 889249 + 324900 = 943^2 + 570^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214149 - 23 = 1214141 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214141) 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, 6162 + ... + 6355.

It is an arithmetic number, because the mean of its divisors is an integer number (306691).

21214149 is an apocalyptic number.

It is an amenable number.

1214149 is a deficient number, since it is larger than the sum of its proper divisors (12615).

1214149 is an equidigital number, since it uses as much as digits as its factorization.

1214149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12614.

The product of its digits is 288, while the sum is 22.

The square root of 1214149 is about 1101.8842951962. The cubic root of 1214149 is about 106.6818804255.

It can be divided in two parts, 12 and 14149, that added together give a square (14161 = 1192).

The spelling of 1214149 in words is "one million, two hundred fourteen thousand, one hundred forty-nine".

Divisors: 1 97 12517 1214149