122523136 has 40 divisors (see below), whose sum is σ = 248883624. Its totient is φ = 60241920.

The previous prime is 122523133. The next prime is 122523143. The reversal of 122523136 is 631325221.

It is a self number, because there is not a number n which added to its sum of digits gives 122523136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122523133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29271 + ... + 33193.

Almost surely, 2^122523136 is an apocalyptic number.

122523136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122523136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124441812).

122523136 is an abundant number, since it is smaller than the sum of its proper divisors (126360488).

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

122523136 is an frugal number, since it uses more digits than its factorization.

122523136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002 (or 3986 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 122523136 is about 11069.0169391866. The cubic root of 122523136 is about 496.6754585074.

Adding to 122523136 its reverse (631325221), we get a palindrome (753848357).

The spelling of 122523136 in words is "one hundred twenty-two million, five hundred twenty-three thousand, one hundred thirty-six".