1401155339 has 2 divisors, whose sum is σ = 1401155340. Its totient is φ = 1401155338.

The previous prime is 1401155309. The next prime is 1401155341. The reversal of 1401155339 is 9335511041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401155339 - 2⁸ = 1401155083 is a prime.

Together with 1401155341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1401155309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700577669 + 700577670.

It is an arithmetic number, because the mean of its divisors is an integer number (700577670).

Almost surely, 2^1401155339 is an apocalyptic number.

1401155339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401155339 is an equidigital number, since it uses as much as digits as its factorization.

1401155339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 1401155339 is about 37432.0095506506. The cubic root of 1401155339 is about 1118.9965872229.

The spelling of 1401155339 in words is "one billion, four hundred one million, one hundred fifty-five thousand, three hundred thirty-nine".