123422500 has 30 divisors (see below), whose sum is σ = 269905790. Its totient is φ = 49368000.

The previous prime is 123422489. The next prime is 123422503. The reversal of 123422500 is 5224321.

It can be written as a sum of positive squares in 5 ways, for example, as 70190884 + 53231616 = 8378^2 + 7296^2 .

It is a super-2 number, since 2×123422500² = 30466227012500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123422503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 22185 + ... + 27184.

Almost surely, 2^123422500 is an apocalyptic number.

123422500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123422500 is an abundant number, since it is smaller than the sum of its proper divisors (146483290).

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

123422500 is an equidigital number, since it uses as much as digits as its factorization.

123422500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49393 (or 49376 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 123422500 is about 11109.5679483948. The cubic root of 123422500 is about 497.8877560832.

Adding to 123422500 its reverse (5224321), we get a palindrome (128646821).

The spelling of 123422500 in words is "one hundred twenty-three million, four hundred twenty-two thousand, five hundred".