1371688131 has 8 divisors (see below), whose sum is σ = 1995182784. Its totient is φ = 831326120.

The previous prime is 1371688127. The next prime is 1371688141. The reversal of 1371688131 is 1318861731.

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 1371688131 - 2² = 1371688127 is a prime.

It is a super-2 number, since 2×1371688131² = 3763056657452546322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1371688131.

It is not an unprimeable number, because it can be changed into a prime (1371688111) 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 7 ways as a sum of consecutive naturals, for example, 20783121 + ... + 20783186.

It is an arithmetic number, because the mean of its divisors is an integer number (249397848).

Almost surely, 2^1371688131 is an apocalyptic number.

1371688131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1371688131 is a deficient number, since it is larger than the sum of its proper divisors (623494653).

1371688131 is a wasteful number, since it uses less digits than its factorization.

1371688131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41566321.

The product of its digits is 24192, while the sum is 39.

The square root of 1371688131 is about 37036.3082798488. The cubic root of 1371688131 is about 1111.0965359195.

The spelling of 1371688131 in words is "one billion, three hundred seventy-one million, six hundred eighty-eight thousand, one hundred thirty-one".