1345555000 has 80 divisors (see below), whose sum is σ = 3254708160. Its totient is φ = 520800000.

The previous prime is 1345554989. The next prime is 1345555033. The reversal of 1345555000 is 5555431.

It is a self number, because there is not a number n which added to its sum of digits gives 1345555000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 150660 + ... + 159340.

It is an arithmetic number, because the mean of its divisors is an integer number (40683852).

Almost surely, 2^1345555000 is an apocalyptic number.

1345555000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345555000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627354080).

1345555000 is an abundant number, since it is smaller than the sum of its proper divisors (1909153160).

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

1345555000 is an equidigital number, since it uses as much as digits as its factorization.

1345555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8738 (or 8719 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 1345555000 is about 36681.8074800029. The cubic root of 1345555000 is about 1103.9951143626.

The spelling of 1345555000 in words is "one billion, three hundred forty-five million, five hundred fifty-five thousand".