1343913661 has 8 divisors (see below), whose sum is σ = 1350425600. Its totient is φ = 1337413680.

The previous prime is 1343913653. The next prime is 1343913677. The reversal of 1343913661 is 1663193431.

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

It is a cyclic number.

It is not a de Polignac number, because 1343913661 - 2³ = 1343913653 is a prime.

It is a super-2 number, since 2×1343913661² = 3612207856444845842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1343913661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343913061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287380 + ... + 292018.

It is an arithmetic number, because the mean of its divisors is an integer number (168803200).

Almost surely, 2^1343913661 is an apocalyptic number.

It is an amenable number.

1343913661 is a deficient number, since it is larger than the sum of its proper divisors (6511939).

1343913661 is a wasteful number, since it uses less digits than its factorization.

1343913661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979.

The product of its digits is 34992, while the sum is 37.

The square root of 1343913661 is about 36659.4279960831. The cubic root of 1343913661 is about 1103.5460388208.

The spelling of 1343913661 in words is "one billion, three hundred forty-three million, nine hundred thirteen thousand, six hundred sixty-one".