1405112556 has 12 divisors (see below), whose sum is σ = 3278595992. Its totient is φ = 468370848.

The previous prime is 1405112539. The next prime is 1405112557. The reversal of 1405112556 is 6552115041.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1405112557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58546345 + ... + 58546368.

Almost surely, 2^1405112556 is an apocalyptic number.

It is an amenable number.

1405112556 is an abundant number, since it is smaller than the sum of its proper divisors (1873483436).

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

1405112556 is a wasteful number, since it uses less digits than its factorization.

1405112556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117092720 (or 117092718 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1405112556 is about 37484.8310120241. The cubic root of 1405112556 is about 1120.0490401571.

Adding to 1405112556 its reverse (6552115041), we get a palindrome (7957227597).

The spelling of 1405112556 in words is "one billion, four hundred five million, one hundred twelve thousand, five hundred fifty-six".