122531450 has 12 divisors (see below), whose sum is σ = 227908590. Its totient is φ = 49012560.

The previous prime is 122531443. The next prime is 122531459. The reversal of 122531450 is 54135221.

122531450 = 1241² + 1242² + ... + 1315².

It can be written as a sum of positive squares in 3 ways, for example, as 95667961 + 26863489 = 9781^2 + 5183^2 .

It is not an unprimeable number, because it can be changed into a prime (122531459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1225265 + ... + 1225364.

Almost surely, 2^122531450 is an apocalyptic number.

122531450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122531450 is a deficient number, since it is larger than the sum of its proper divisors (105377140).

122531450 is a wasteful number, since it uses less digits than its factorization.

122531450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450641 (or 2450636 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 122531450 is about 11069.3924855884. The cubic root of 122531450 is about 496.6866924846.

Adding to 122531450 its reverse (54135221), we get a palindrome (176666671).

The spelling of 122531450 in words is "one hundred twenty-two million, five hundred thirty-one thousand, four hundred fifty".