122543430 has 32 divisors (see below), whose sum is σ = 294624000. Its totient is φ = 32620512.

The previous prime is 122543423. The next prime is 122543437. The reversal of 122543430 is 34345221.

It is an interprime number because it is at equal distance from previous prime (122543423) and next prime (122543437).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122543430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122543437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15271 + ... + 21869.

It is an arithmetic number, because the mean of its divisors is an integer number (9207000).

Almost surely, 2^122543430 is an apocalyptic number.

122543430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122543430 is an abundant number, since it is smaller than the sum of its proper divisors (172080570).

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

122543430 is a wasteful number, since it uses less digits than its factorization.

122543430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7228.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 122543430 is about 11069.9336041369. The cubic root of 122543430 is about 496.7028791117.

Adding to 122543430 its reverse (34345221), we get a palindrome (156888651).

The spelling of 122543430 in words is "one hundred twenty-two million, five hundred forty-three thousand, four hundred thirty".