Search a number
-
+
7425149 is a prime number
BaseRepresentation
bin11100010100110001111101
3111222020101112
4130110301331
53400101044
6423051405
7120053444
oct34246175
914866345
107425149
114211696
1225a0b65
1316cc8a4
14db3d5b
159ba09e
hex714c7d

7425149 has 2 divisors, whose sum is σ = 7425150. Its totient is φ = 7425148.

The previous prime is 7425133. The next prime is 7425157. The reversal of 7425149 is 9415247.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6175225 + 1249924 = 2485^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 7425149 - 24 = 7425133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7425169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3712574 + 3712575.

It is an arithmetic number, because the mean of its divisors is an integer number (3712575).

Almost surely, 27425149 is an apocalyptic number.

It is an amenable number.

7425149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7425149 is an equidigital number, since it uses as much as digits as its factorization.

7425149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 7425149 is about 2724.9126591507. The cubic root of 7425149 is about 195.0900219895.

The spelling of 7425149 in words is "seven million, four hundred twenty-five thousand, one hundred forty-nine".