122813000 has 64 divisors (see below), whose sum is σ = 289336320. Its totient is φ = 48792000.

The previous prime is 122812997. The next prime is 122813003. The reversal of 122813000 is 318221.

It is an interprime number because it is at equal distance from previous prime (122812997) and next prime (122813003).

It is a self number, because there is not a number n which added to its sum of digits gives 122813000.

It is not an unprimeable number, because it can be changed into a prime (122813003) 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, 190679 + ... + 191321.

It is an arithmetic number, because the mean of its divisors is an integer number (4520880).

Almost surely, 2^122813000 is an apocalyptic number.

122813000 is a gapful number since it is divisible by the number (10) 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 122813000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144668160).

122813000 is an abundant number, since it is smaller than the sum of its proper divisors (166523320).

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

122813000 is a wasteful number, since it uses less digits than its factorization.

122813000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 122813000 is about 11082.1026885695. The cubic root of 122813000 is about 497.0668266355.

The spelling of 122813000 in words is "one hundred twenty-two million, eight hundred thirteen thousand".