122503540 has 24 divisors (see below), whose sum is σ = 266129640. Its totient is φ = 47311488.

The previous prime is 122503523. The next prime is 122503541. The reversal of 122503540 is 45305221.

It can be written as a sum of positive squares in 4 ways, for example, as 2916 + 122500624 = 54^2 + 11068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122503541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105027 + ... + 106186.

It is an arithmetic number, because the mean of its divisors is an integer number (11088735).

Almost surely, 2^122503540 is an apocalyptic number.

122503540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122503540 is an abundant number, since it is smaller than the sum of its proper divisors (143626100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122503540 is a wasteful number, since it uses less digits than its factorization.

122503540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211251 (or 211249 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 122503540 is about 11068.1317303328. The cubic root of 122503540 is about 496.6489781448.

Adding to 122503540 its reverse (45305221), we get a palindrome (167808761).

The spelling of 122503540 in words is "one hundred twenty-two million, five hundred three thousand, five hundred forty".