1345651860 has 48 divisors (see below), whose sum is σ = 4306087296. Its totient is φ = 307577472.

The previous prime is 1345651849. The next prime is 1345651871. The reversal of 1345651860 is 681565431.

It is an interprime number because it is at equal distance from previous prime (1345651849) and next prime (1345651871).

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, 1601547 + ... + 1602386.

It is an arithmetic number, because the mean of its divisors is an integer number (89710152).

Almost surely, 2^1345651860 is an apocalyptic number.

1345651860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345651860 is an abundant number, since it is smaller than the sum of its proper divisors (2960435436).

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

1345651860 is a wasteful number, since it uses less digits than its factorization.

1345651860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203952 (or 3203950 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1345651860 is about 36683.1277292436. The cubic root of 1345651860 is about 1104.0216041508.

The spelling of 1345651860 in words is "one billion, three hundred forty-five million, six hundred fifty-one thousand, eight hundred sixty".