1127329405 has 16 divisors (see below), whose sum is σ = 1362648240. Its totient is φ = 895315968.

The previous prime is 1127329403. The next prime is 1127329417. The reversal of 1127329405 is 5049237211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6017209 + 1121312196 = 2453^2 + 33486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1127329405 - 2¹ = 1127329403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127329403) 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 in 15 ways as a sum of consecutive naturals, for example, 629251 + ... + 631039.

It is an arithmetic number, because the mean of its divisors is an integer number (85165515).

Almost surely, 2^1127329405 is an apocalyptic number.

It is an amenable number.

1127329405 is a deficient number, since it is larger than the sum of its proper divisors (235318835).

1127329405 is a wasteful number, since it uses less digits than its factorization.

1127329405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1127329405 is about 33575.7264254997. The cubic root of 1127329405 is about 1040.7592474167.

The spelling of 1127329405 in words is "one billion, one hundred twenty-seven million, three hundred twenty-nine thousand, four hundred five".