1290112 has 16 divisors (see below), whose sum is σ = 2570400. Its totient is φ = 644992.

The previous prime is 1290109. The next prime is 1290131. The reversal of 1290112 is 2110921.

It is a tau number, because it is divible by the number of its divisors (16).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4912 + ... + 5167.

It is an arithmetic number, because the mean of its divisors is an integer number (160650).

2^1290112 is an apocalyptic number.

It is an amenable number.

1290112 is a deficient number, since it is larger than the sum of its proper divisors (1280288).

1290112 is an equidigital number, since it uses as much as digits as its factorization.

1290112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10093 (or 10081 counting only the distinct ones).

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

The square root of 1290112 is about 1135.8309733407. The cubic root of 1290112 is about 108.8618736875.

The spelling of 1290112 in words is "one million, two hundred ninety thousand, one hundred twelve".