1376471231 has 2 divisors, whose sum is σ = 1376471232. Its totient is φ = 1376471230.

The previous prime is 1376471227. The next prime is 1376471233. The reversal of 1376471231 is 1321746731.

It is a strong prime.

It is an emirp because it is prime and its reverse (1321746731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1376471231 - 2² = 1376471227 is a prime.

It is a super-2 number, since 2×1376471231² = 3789346099541310722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1376471233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1376471191 and 1376471200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1376471233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688235615 + 688235616.

It is an arithmetic number, because the mean of its divisors is an integer number (688235616).

Almost surely, 2^1376471231 is an apocalyptic number.

1376471231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376471231 is an equidigital number, since it uses as much as digits as its factorization.

1376471231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 1376471231 is about 37100.8252064560. The cubic root of 1376471231 is about 1112.3865085758.

The spelling of 1376471231 in words is "one billion, three hundred seventy-six million, four hundred seventy-one thousand, two hundred thirty-one".