1345515500 has 72 divisors (see below), whose sum is σ = 3418440480. Its totient is φ = 461311200.

The previous prime is 1345515499. The next prime is 1345515527. The reversal of 1345515500 is 55155431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2960 + ... + 51959.

It is an arithmetic number, because the mean of its divisors is an integer number (47478340).

Almost surely, 2^1345515500 is an apocalyptic number.

1345515500 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 1345515500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709220240).

1345515500 is an abundant number, since it is smaller than the sum of its proper divisors (2072924980).

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

1345515500 is a wasteful number, since it uses less digits than its factorization.

1345515500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54952 (or 54933 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1345515500 is about 36681.2690620158. The cubic root of 1345515500 is about 1103.9843113275.

The spelling of 1345515500 in words is "one billion, three hundred forty-five million, five hundred fifteen thousand, five hundred".