1012912 has 40 divisors (see below), whose sum is σ = 2120400. Its totient is φ = 467712.

The previous prime is 1012903. The next prime is 1012919. The reversal of 1012912 is 2192101.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1012919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17139 + ... + 17197.

It is an arithmetic number, because the mean of its divisors is an integer number (53010).

2^1012912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1060200).

1012912 is an abundant number, since it is smaller than the sum of its proper divisors (1107488).

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

1012912 is a wasteful number, since it uses less digits than its factorization.

1012912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1012912 is about 1006.4352934988. The cubic root of 1012912 is about 100.4285607333.

The spelling of 1012912 in words is "one million, twelve thousand, nine hundred twelve".