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122501 is a prime number
BaseRepresentation
bin11101111010000101
320020001002
4131322011
512410001
62343045
71020101
oct357205
9206032
10122501
1184045
125aa85
13439b2
1432901
152646b
hex1de85

122501 has 2 divisors, whose sum is σ = 122502. Its totient is φ = 122500.

The previous prime is 122497. The next prime is 122503. The reversal of 122501 is 105221.

It is a Cunningham number, because it is equal to 3502+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122500 + 1 = 350^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 122501 - 22 = 122497 is a prime.

Together with 122503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61250 + 61251.

It is an arithmetic number, because the mean of its divisors is an integer number (61251).

2122501 is an apocalyptic number.

It is an amenable number.

122501 is a deficient number, since it is larger than the sum of its proper divisors (1).

122501 is an equidigital number, since it uses as much as digits as its factorization.

122501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 122501 is about 350.0014285685. The cubic root of 122501 is about 49.6645545599.

Adding to 122501 its reverse (105221), we get a palindrome (227722).

The spelling of 122501 in words is "one hundred twenty-two thousand, five hundred one".