1081129927 has 16 divisors (see below), whose sum is σ = 1146905280. Its totient is φ = 1017004032.

The previous prime is 1081129919. The next prime is 1081129961. The reversal of 1081129927 is 7299211801.

It is a cyclic number.

It is not a de Polignac number, because 1081129927 - 2³ = 1081129919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081129927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081129967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766599 + ... + 768007.

It is an arithmetic number, because the mean of its divisors is an integer number (71681580).

Almost surely, 2^1081129927 is an apocalyptic number.

1081129927 is a deficient number, since it is larger than the sum of its proper divisors (65775353).

1081129927 is a wasteful number, since it uses less digits than its factorization.

1081129927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 1081129927 is about 32880.5402479947. The cubic root of 1081129927 is about 1026.3432484801.

The spelling of 1081129927 in words is "one billion, eighty-one million, one hundred twenty-nine thousand, nine hundred twenty-seven".