122542505 has 16 divisors (see below), whose sum is σ = 154327680. Its totient is φ = 93232128.

The previous prime is 122542463. The next prime is 122542513. The reversal of 122542505 is 505245221.

It is a cyclic number.

It is not a de Polignac number, because 122542505 - 2¹⁴ = 122526121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17609 + ... + 23561.

It is an arithmetic number, because the mean of its divisors is an integer number (9645480).

Almost surely, 2^122542505 is an apocalyptic number.

It is an amenable number.

122542505 is a deficient number, since it is larger than the sum of its proper divisors (31785175).

122542505 is a wasteful number, since it uses less digits than its factorization.

122542505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 122542505 is about 11069.8918242230. The cubic root of 122542505 is about 496.7016293471.

Adding to 122542505 its reverse (505245221), we get a palindrome (627787726).

The spelling of 122542505 in words is "one hundred twenty-two million, five hundred forty-two thousand, five hundred five".