1343585881 has 8 divisors (see below), whose sum is σ = 1493385984. Its totient is φ = 1198395120.

The previous prime is 1343585857. The next prime is 1343585891. The reversal of 1343585881 is 1885853431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343585881 is a prime.

It is a super-2 number, since 2×1343585881² = 3610446039245092322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343585801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151721 + ... + 1152886.

It is an arithmetic number, because the mean of its divisors is an integer number (186673248).

Almost surely, 2^1343585881 is an apocalyptic number.

1343585881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1343585881 is a deficient number, since it is larger than the sum of its proper divisors (149800103).

1343585881 is a wasteful number, since it uses less digits than its factorization.

1343585881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304671.

The product of its digits is 460800, while the sum is 46.

The square root of 1343585881 is about 36654.9571136020. The cubic root of 1343585881 is about 1103.4563133811.

The spelling of 1343585881 in words is "one billion, three hundred forty-three million, five hundred eighty-five thousand, eight hundred eighty-one".