1345500 has 144 divisors (see below), whose sum is σ = 4769856. Its totient is φ = 316800.

The previous prime is 1345481. The next prime is 1345507. The reversal of 1345500 is 55431.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345507) 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 in 47 ways as a sum of consecutive naturals, for example, 58489 + ... + 58511.

It is an arithmetic number, because the mean of its divisors is an integer number (33124).

2^1345500 is an apocalyptic number.

1345500 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 1345500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2384928).

1345500 is an abundant number, since it is smaller than the sum of its proper divisors (3424356).

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

1345500 is a wasteful number, since it uses less digits than its factorization.

1345500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1345500 is about 1159.9568957509. The cubic root of 1345500 is about 110.3980072104.

The spelling of 1345500 in words is "one million, three hundred forty-five thousand, five hundred".