1345253140 has 48 divisors (see below), whose sum is σ = 3522121344. Its totient is φ = 419299200.

The previous prime is 1345253137. The next prime is 1345253171. The reversal of 1345253140 is 413525431.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1345253099 and 1345253108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435231 + ... + 438310.

It is an arithmetic number, because the mean of its divisors is an integer number (73377528).

Almost surely, 2^1345253140 is an apocalyptic number.

1345253140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345253140 is an abundant number, since it is smaller than the sum of its proper divisors (2176868204).

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

1345253140 is a wasteful number, since it uses less digits than its factorization.

1345253140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873568 (or 873566 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1345253140 is about 36677.6926755215. The cubic root of 1345253140 is about 1103.9125519283.

Adding to 1345253140 its reverse (413525431), we get a palindrome (1758778571).

The spelling of 1345253140 in words is "one billion, three hundred forty-five million, two hundred fifty-three thousand, one hundred forty".