1343661351 has 32 divisors (see below), whose sum is σ = 1916732160. Its totient is φ = 834341376.

The previous prime is 1343661337. The next prime is 1343661359. The reversal of 1343661351 is 1531663431.

It is not a de Polignac number, because 1343661351 - 2⁷ = 1343661223 is a prime.

It is a super-2 number, since 2×1343661351² = 3610851652342290402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343661359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3206620 + ... + 3207038.

It is an arithmetic number, because the mean of its divisors is an integer number (59897880).

Almost surely, 2^1343661351 is an apocalyptic number.

1343661351 is a deficient number, since it is larger than the sum of its proper divisors (573070809).

1343661351 is a wasteful number, since it uses less digits than its factorization.

1343661351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943.

The product of its digits is 19440, while the sum is 33.

The square root of 1343661351 is about 36655.9865642708. The cubic root of 1343661351 is about 1103.4769735884.

The spelling of 1343661351 in words is "one billion, three hundred forty-three million, six hundred sixty-one thousand, three hundred fifty-one".