1912122 has 24 divisors (see below), whose sum is σ = 4361760. Its totient is φ = 603720.

The previous prime is 1912121. The next prime is 1912129. The reversal of 1912122 is 2212191.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1912095 and 1912104.

It is not an unprimeable number, because it can be changed into a prime (1912121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2454 + ... + 3137.

It is an arithmetic number, because the mean of its divisors is an integer number (181740).

2^1912122 is an apocalyptic number.

1912122 is an abundant number, since it is smaller than the sum of its proper divisors (2449638).

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

1912122 is a wasteful number, since it uses less digits than its factorization.

1912122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618 (or 5615 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1912122 is about 1382.7949956519. The cubic root of 1912122 is about 124.1190756962.

The spelling of 1912122 in words is "one million, nine hundred twelve thousand, one hundred twenty-two".