1212056 has 8 divisors (see below), whose sum is σ = 2272620. Its totient is φ = 606024.

The previous prime is 1212053. The next prime is 1212061. The reversal of 1212056 is 6502121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212053) 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 as a sum of consecutive naturals, namely, 75746 + ... + 75761.

2^1212056 is an apocalyptic number.

It is an amenable number.

1212056 is a deficient number, since it is larger than the sum of its proper divisors (1060564).

1212056 is a wasteful number, since it uses less digits than its factorization.

1212056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151513 (or 151509 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1212056 is about 1100.9341488027. The cubic root of 1212056 is about 106.6205442958.

Adding to 1212056 its reverse (6502121), we get a palindrome (7714177).

The spelling of 1212056 in words is "one million, two hundred twelve thousand, fifty-six".