Search a number
-
+
1492189 is a prime number
BaseRepresentation
bin101101100010011011101
32210210220021
411230103131
5340222224
651552141
715453256
oct5542335
92723807
101492189
1192a116
125bb651
1340326a
142abb2d
151e71e4
hex16c4dd

1492189 has 2 divisors, whose sum is σ = 1492190. Its totient is φ = 1492188.

The previous prime is 1492187. The next prime is 1492201. The reversal of 1492189 is 9812941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783225 + 708964 = 885^2 + 842^2 .

It is an emirp because it is prime and its reverse (9812941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1492189 - 21 = 1492187 is a prime.

Together with 1492187, it forms a pair of twin primes.

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

1492189 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1492181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746094 + 746095.

It is an arithmetic number, because the mean of its divisors is an integer number (746095).

21492189 is an apocalyptic number.

It is an amenable number.

1492189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1492189 is an equidigital number, since it uses as much as digits as its factorization.

1492189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 1492189 is about 1221.5518818290. The cubic root of 1492189 is about 114.2723814059.

It can be divided in two parts, 1492 and 189, that added together give a square (1681 = 412).

The spelling of 1492189 in words is "one million, four hundred ninety-two thousand, one hundred eighty-nine".