1401565339 has 2 divisors, whose sum is σ = 1401565340. Its totient is φ = 1401565338.

The previous prime is 1401565327. The next prime is 1401565387. The reversal of 1401565339 is 9335651041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1401565339 - 2¹⁵ = 1401532571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401565298 and 1401565307.

It is not a weakly prime, because it can be changed into another prime (1401566339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700782669 + 700782670.

It is an arithmetic number, because the mean of its divisors is an integer number (700782670).

Almost surely, 2^1401565339 is an apocalyptic number.

1401565339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401565339 is an equidigital number, since it uses as much as digits as its factorization.

1401565339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 1401565339 is about 37437.4857462410. The cubic root of 1401565339 is about 1119.1057218886.

The spelling of 1401565339 in words is "one billion, four hundred one million, five hundred sixty-five thousand, three hundred thirty-nine".