1380031 has 2 divisors, whose sum is σ = 1380032. Its totient is φ = 1380030.

The previous prime is 1380013. The next prime is 1380047. The reversal of 1380031 is 1300831.

Together with previous prime (1380013) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (1380047) can be obtained adding 1380031 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1380031 - 2⁹ = 1379519 is a prime.

It is a super-2 number, since 2×1380031² = 3808971121922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1379987 and 1380014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380931) 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 as a sum of consecutive naturals, namely, 690015 + 690016.

It is an arithmetic number, because the mean of its divisors is an integer number (690016).

2^1380031 is an apocalyptic number.

1380031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380031 is an equidigital number, since it uses as much as digits as its factorization.

1380031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1380031 is about 1174.7472068492. The cubic root of 1380031 is about 111.3344618035.

Adding to 1380031 its reverse (1300831), we get a palindrome (2680862).

It can be divided in two parts, 13800 and 31, that added together give a palindrome (13831).

The spelling of 1380031 in words is "one million, three hundred eighty thousand, thirty-one".