1345032140 has 24 divisors (see below), whose sum is σ = 2900908752. Its totient is φ = 523471680.

The previous prime is 1345032133. The next prime is 1345032179. The reversal of 1345032140 is 412305431.

It is a super-2 number, since 2×1345032140² = 3618222915265959200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908066 + ... + 909545.

It is an arithmetic number, because the mean of its divisors is an integer number (120871198).

Almost surely, 2^1345032140 is an apocalyptic number.

1345032140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345032140 is an abundant number, since it is smaller than the sum of its proper divisors (1555876612).

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

1345032140 is a wasteful number, since it uses less digits than its factorization.

1345032140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817657 (or 1817655 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1345032140 is about 36674.6798213699. The cubic root of 1345032140 is about 1103.8520978701.

Adding to 1345032140 its reverse (412305431), we get a palindrome (1757337571).

The spelling of 1345032140 in words is "one billion, three hundred forty-five million, thirty-two thousand, one hundred forty".