1361372831 has 32 divisors (see below), whose sum is σ = 1726032000. Its totient is φ = 1066867200.

The previous prime is 1361372827. The next prime is 1361372849. The reversal of 1361372831 is 1382731631.

It is not a de Polignac number, because 1361372831 - 2² = 1361372827 is a prime.

It is a super-2 number, since 2×1361372831² = 3706671969969909122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1361372791 and 1361372800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361372821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484631 + ... + 487431.

It is an arithmetic number, because the mean of its divisors is an integer number (53938500).

Almost surely, 2^1361372831 is an apocalyptic number.

1361372831 is a deficient number, since it is larger than the sum of its proper divisors (364659169).

1361372831 is a wasteful number, since it uses less digits than its factorization.

1361372831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944 (or 2930 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 1361372831 is about 36896.7861879595. The cubic root of 1361372831 is about 1108.3043208164.

The spelling of 1361372831 in words is "one billion, three hundred sixty-one million, three hundred seventy-two thousand, eight hundred thirty-one".