Search a number
-
+
1401443 is a prime number
BaseRepresentation
bin101010110001001100011
32122012102022
411112021203
5324321233
650012055
714624561
oct5261143
92565368
101401443
11877a1a
1257702b
133a0b74
14286a31
151ca398
hex156263

1401443 has 2 divisors, whose sum is σ = 1401444. Its totient is φ = 1401442.

The previous prime is 1401437. The next prime is 1401461. The reversal of 1401443 is 3441041.

It is a weak prime.

It is an emirp because it is prime and its reverse (3441041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401443 - 28 = 1401187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700721 + 700722.

It is an arithmetic number, because the mean of its divisors is an integer number (700722).

21401443 is an apocalyptic number.

1401443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401443 is an equidigital number, since it uses as much as digits as its factorization.

1401443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1401443 is about 1183.8255783687. The cubic root of 1401443 is about 111.9073159663.

Adding to 1401443 its reverse (3441041), we get a palindrome (4842484).

The spelling of 1401443 in words is "one million, four hundred one thousand, four hundred forty-three".