1402555439 has 2 divisors, whose sum is σ = 1402555440. Its totient is φ = 1402555438.

The previous prime is 1402555417. The next prime is 1402555477. The reversal of 1402555439 is 9345552041.

It is an a-pointer prime, because the next prime (1402555477) can be obtained adding 1402555439 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1402555439 - 2¹² = 1402551343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402555499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701277719 + 701277720.

It is an arithmetic number, because the mean of its divisors is an integer number (701277720).

Almost surely, 2^1402555439 is an apocalyptic number.

1402555439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402555439 is an equidigital number, since it uses as much as digits as its factorization.

1402555439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 1402555439 is about 37450.7067890581. The cubic root of 1402555439 is about 1119.3691810687.

The spelling of 1402555439 in words is "one billion, four hundred two million, five hundred fifty-five thousand, four hundred thirty-nine".