981129411 has 6 divisors (see below), whose sum is σ = 1417186940. Its totient is φ = 654086268.

The previous prime is 981129397. The next prime is 981129439. The reversal of 981129411 is 114921189.

It is not a de Polignac number, because 981129411 - 2⁷ = 981129283 is a prime.

It is a super-3 number, since 3×981129411³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981129451) 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 5 ways as a sum of consecutive naturals, for example, 54507181 + ... + 54507198.

Almost surely, 2^981129411 is an apocalyptic number.

981129411 is a deficient number, since it is larger than the sum of its proper divisors (436057529).

981129411 is a wasteful number, since it uses less digits than its factorization.

981129411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109014385 (or 109014382 counting only the distinct ones).

The product of its digits is 5184, while the sum is 36.

The square root of 981129411 is about 31322.9853462278. The cubic root of 981129411 is about 993.6698170026.

The spelling of 981129411 in words is "nine hundred eighty-one million, one hundred twenty-nine thousand, four hundred eleven".