122520437 has 12 divisors (see below), whose sum is σ = 133305984. Its totient is φ = 112554000.

The previous prime is 122520427. The next prime is 122520439. The reversal of 122520437 is 734025221.

It is not a de Polignac number, because 122520437 - 2¹² = 122516341 is a prime.

It is a super-2 number, since 2×122520437² = 30022514965341938, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122520439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36062 + ... + 39312.

It is an arithmetic number, because the mean of its divisors is an integer number (11108832).

Almost surely, 2^122520437 is an apocalyptic number.

It is an amenable number.

122520437 is a deficient number, since it is larger than the sum of its proper divisors (10785547).

122520437 is a wasteful number, since it uses less digits than its factorization.

122520437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 122520437 is about 11068.8950216361. The cubic root of 122520437 is about 496.6718114767.

Adding to 122520437 its reverse (734025221), we get a palindrome (856545658).

The spelling of 122520437 in words is "one hundred twenty-two million, five hundred twenty thousand, four hundred thirty-seven".