Search a number
-
+
149925079 is a prime number
BaseRepresentation
bin10001110111110…
…10110011010111
3101110002222112201
420323322303113
5301340100304
622513225331
73500225233
oct1073726327
9343088481
10149925079
11776a0a27
1242262247
13250a3a85
1415ca95c3
15d2673a4
hex8efacd7

149925079 has 2 divisors, whose sum is σ = 149925080. Its totient is φ = 149925078.

The previous prime is 149925071. The next prime is 149925089. The reversal of 149925079 is 970529941.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (970529941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149925079 - 23 = 149925071 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 (149925071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74962539 + 74962540.

It is an arithmetic number, because the mean of its divisors is an integer number (74962540).

Almost surely, 2149925079 is an apocalyptic number.

149925079 is a deficient number, since it is larger than the sum of its proper divisors (1).

149925079 is an equidigital number, since it uses as much as digits as its factorization.

149925079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 149925079 is about 12244.3896948766. The cubic root of 149925079 is about 531.2408082562.

The spelling of 149925079 in words is "one hundred forty-nine million, nine hundred twenty-five thousand, seventy-nine".