1345515402 has 144 divisors (see below), whose sum is σ = 3482408160. Its totient is φ = 345280320.

The previous prime is 1345515361. The next prime is 1345515403. The reversal of 1345515402 is 2045155431.

It is a self number, because there is not a number n which added to its sum of digits gives 1345515402.

It is not an unprimeable number, because it can be changed into a prime (1345515403) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3877393 + ... + 3877739.

It is an arithmetic number, because the mean of its divisors is an integer number (24183390).

Almost surely, 2^1345515402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1345515402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741204080).

1345515402 is an abundant number, since it is smaller than the sum of its proper divisors (2136892758).

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

1345515402 is a wasteful number, since it uses less digits than its factorization.

1345515402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1345515402 is about 36681.2677261842. The cubic root of 1345515402 is about 1103.9842845248.

The spelling of 1345515402 in words is "one billion, three hundred forty-five million, five hundred fifteen thousand, four hundred two".