1345503140 has 48 divisors (see below), whose sum is σ = 2927232000. Its totient is φ = 518888832.

The previous prime is 1345503017. The next prime is 1345503143. The reversal of 1345503140 is 413055431.

It is not an unprimeable number, because it can be changed into a prime (1345503143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559661 + ... + 562059.

It is an arithmetic number, because the mean of its divisors is an integer number (60984000).

Almost surely, 2^1345503140 is an apocalyptic number.

1345503140 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 1345503140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463616000).

1345503140 is an abundant number, since it is smaller than the sum of its proper divisors (1581728860).

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

1345503140 is a wasteful number, since it uses less digits than its factorization.

1345503140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3402 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1345503140 is about 36681.1005832704. The cubic root of 1345503140 is about 1103.9809308913.

Adding to 1345503140 its reverse (413055431), we get a palindrome (1758558571).

The spelling of 1345503140 in words is "one billion, three hundred forty-five million, five hundred three thousand, one hundred forty".