1401310387 has 2 divisors, whose sum is σ = 1401310388. Its totient is φ = 1401310386.

The previous prime is 1401310343. The next prime is 1401310399. The reversal of 1401310387 is 7830131041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401310387 - 2¹⁹ = 1400786099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401310327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700655193 + 700655194.

It is an arithmetic number, because the mean of its divisors is an integer number (700655194).

Almost surely, 2^1401310387 is an apocalyptic number.

1401310387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401310387 is an equidigital number, since it uses as much as digits as its factorization.

1401310387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1401310387 is about 37434.0805550237. The cubic root of 1401310387 is about 1119.0378607298.

The spelling of 1401310387 in words is "one billion, four hundred one million, three hundred ten thousand, three hundred eighty-seven".