1405135727 has 2 divisors, whose sum is σ = 1405135728. Its totient is φ = 1405135726.

The previous prime is 1405135691. The next prime is 1405135733. The reversal of 1405135727 is 7275315041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1405135727 - 2²⁰ = 1404087151 is a prime.

It is a super-2 number, since 2×1405135727² = 3948812822583637058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405131727) 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, 702567863 + 702567864.

It is an arithmetic number, because the mean of its divisors is an integer number (702567864).

Almost surely, 2^1405135727 is an apocalyptic number.

1405135727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405135727 is an equidigital number, since it uses as much as digits as its factorization.

1405135727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 1405135727 is about 37485.1400824380. The cubic root of 1405135727 is about 1120.0551968439.

The spelling of 1405135727 in words is "one billion, four hundred five million, one hundred thirty-five thousand, seven hundred twenty-seven".