1345711872 has 36 divisors (see below), whose sum is σ = 3581558120. Its totient is φ = 448570368.

The previous prime is 1345711847. The next prime is 1345711883. The reversal of 1345711872 is 2781175431.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1345711872.

It is a congruent number.

It is an unprimeable number.

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, 875347 + ... + 876882.

Almost surely, 2^1345711872 is an apocalyptic number.

1345711872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1345711872 is an abundant number, since it is smaller than the sum of its proper divisors (2235846248).

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

1345711872 is an equidigital number, since it uses as much as digits as its factorization.

1345711872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752248 (or 1752234 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 1345711872 is about 36683.9456983569. The cubic root of 1345711872 is about 1104.0380159142.

The spelling of 1345711872 in words is "one billion, three hundred forty-five million, seven hundred eleven thousand, eight hundred seventy-two".