1346543631 has 12 divisors (see below), whose sum is σ = 2012077080. Its totient is φ = 866740560.

The previous prime is 1346543593. The next prime is 1346543647. The reversal of 1346543631 is 1363456431.

1346543631 = T₄₄₈ + T₄₄₉ + ... + T₂₀₁₃.

1346543631 is a `hidden beast` number, since 13 + 4 + 6 + 5 + 4 + 3 + 631 = 666.

It is not a de Polignac number, because 1346543631 - 2¹⁰ = 1346542607 is a prime.

It is a super-2 number, since 2×1346543631² = 3626359500373328322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346543831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2579325 + ... + 2579846.

It is an arithmetic number, because the mean of its divisors is an integer number (167673090).

Almost surely, 2^1346543631 is an apocalyptic number.

1346543631 is a deficient number, since it is larger than the sum of its proper divisors (665533449).

1346543631 is a wasteful number, since it uses less digits than its factorization.

1346543631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159206 (or 5159203 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 1346543631 is about 36695.2807728732. The cubic root of 1346543631 is about 1104.2654307239.

The spelling of 1346543631 in words is "one billion, three hundred forty-six million, five hundred forty-three thousand, six hundred thirty-one".