1343651631 has 32 divisors (see below), whose sum is σ = 2165108736. Its totient is φ = 724896000.

The previous prime is 1343651623. The next prime is 1343651653. The reversal of 1343651631 is 1361563431.

It is not a de Polignac number, because 1343651631 - 2³ = 1343651623 is a prime.

It is a super-2 number, since 2×1343651631² = 3610799410977920322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1343651592 and 1343651601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343651681) 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 31 ways as a sum of consecutive naturals, for example, 1521 + ... + 51861.

It is an arithmetic number, because the mean of its divisors is an integer number (67659648).

Almost surely, 2^1343651631 is an apocalyptic number.

1343651631 is a deficient number, since it is larger than the sum of its proper divisors (821457105).

1343651631 is a wasteful number, since it uses less digits than its factorization.

1343651631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50423.

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

The square root of 1343651631 is about 36655.8539799580. The cubic root of 1343651631 is about 1103.4743127439.

The spelling of 1343651631 in words is "one billion, three hundred forty-three million, six hundred fifty-one thousand, six hundred thirty-one".