122507 has 16 divisors (see below), whose sum is σ = 160512. Its totient is φ = 90720.
The previous prime is 122503. The next prime is 122509. The reversal of 122507 is 705221.
It is not a de Polignac number, because 122507 - 22 = 122503 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122501) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2828 + ... + 2870.
It is an arithmetic number, because the mean of its divisors is an integer number (10032).
2122507 is an apocalyptic number.
122507 is a deficient number, since it is larger than the sum of its proper divisors (38005).
122507 is a wasteful number, since it uses less digits than its factorization.
122507 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98.
The product of its (nonzero) digits is 140, while the sum is 17.
The square root of 122507 is about 350.0099998571. The cubic root of 122507 is about 49.6653653899.
Adding to 122507 its reverse (705221), we get a palindrome (827728).
The spelling of 122507 in words is "one hundred twenty-two thousand, five hundred seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •