122775000 has 96 divisors (see below), whose sum is σ = 383881680. Its totient is φ = 32720000.

The previous prime is 122774999. The next prime is 122775007. The reversal of 122775000 is 577221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122775007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74182 + ... + 75818.

Almost surely, 2^122775000 is an apocalyptic number.

122775000 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 122775000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191940840).

122775000 is an abundant number, since it is smaller than the sum of its proper divisors (261106680).

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

122775000 is an equidigital number, since it uses as much as digits as its factorization.

122775000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 122775000 is about 11080.3880798463. The cubic root of 122775000 is about 497.0155549518.

The spelling of 122775000 in words is "one hundred twenty-two million, seven hundred seventy-five thousand".