Search a number
-
+
122715001 is a prime number
BaseRepresentation
bin1110101000001…
…11101101111001
322112220120100001
413110013231321
5222403340001
620102113001
73020026453
oct724075571
9275816301
10122715001
11632a6662
123511b761
131c567936
14124252d3
15ab90001
hex7507b79

122715001 has 2 divisors, whose sum is σ = 122715002. Its totient is φ = 122715000.

The previous prime is 122714953. The next prime is 122715007. The reversal of 122715001 is 100517221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120231225 + 2483776 = 10965^2 + 1576^2 .

It is a cyclic number.

It is not a de Polignac number, because 122715001 - 223 = 114326393 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122715001.

It is not a weakly prime, because it can be changed into another prime (122715007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61357500 + 61357501.

It is an arithmetic number, because the mean of its divisors is an integer number (61357501).

Almost surely, 2122715001 is an apocalyptic number.

It is an amenable number.

122715001 is a deficient number, since it is larger than the sum of its proper divisors (1).

122715001 is an equidigital number, since it uses as much as digits as its factorization.

122715001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 122715001 is about 11077.6803077179. The cubic root of 122715001 is about 496.9345794675.

The spelling of 122715001 in words is "one hundred twenty-two million, seven hundred fifteen thousand, one".