122520453 has 16 divisors (see below), whose sum is σ = 179144256. Its totient is φ = 73866240.

The previous prime is 122520451. The next prime is 122520473. The reversal of 122520453 is 354025221.

It is not a de Polignac number, because 122520453 - 2¹ = 122520451 is a prime.

It is a super-2 number, since 2×122520453² = 30022522806650418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122520451) 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 15 ways as a sum of consecutive naturals, for example, 3250 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (11196516).

Almost surely, 2^122520453 is an apocalyptic number.

It is an amenable number.

122520453 is a deficient number, since it is larger than the sum of its proper divisors (56623803).

122520453 is a wasteful number, since it uses less digits than its factorization.

122520453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 122520453 is about 11068.8957443821. The cubic root of 122520453 is about 496.6718330969.

Adding to 122520453 its reverse (354025221), we get a palindrome (476545674).

The spelling of 122520453 in words is "one hundred twenty-two million, five hundred twenty thousand, four hundred fifty-three".