1210655056 has 40 divisors (see below), whose sum is σ = 2530428320. Its totient is φ = 557801856.

The previous prime is 1210655027. The next prime is 1210655057. The reversal of 1210655056 is 6505560121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210655057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124051 + ... + 133453.

It is an arithmetic number, because the mean of its divisors is an integer number (63260708).

Almost surely, 2^1210655056 is an apocalyptic number.

1210655056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1210655056 is an abundant number, since it is smaller than the sum of its proper divisors (1319773264).

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

1210655056 is a wasteful number, since it uses less digits than its factorization.

1210655056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10043 (or 10037 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1210655056 is about 34794.4687558238. The cubic root of 1210655056 is about 1065.7944966049.

The spelling of 1210655056 in words is "one billion, two hundred ten million, six hundred fifty-five thousand, fifty-six".