981121952 has 24 divisors (see below), whose sum is σ = 2045207556. Its totient is φ = 461704192.

The previous prime is 981121951. The next prime is 981122029. The reversal of 981121952 is 259121189.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 968703376 + 12418576 = 31124^2 + 3524^2 .

It is not an unprimeable number, because it can be changed into a prime (981121951) 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 3 ways as a sum of consecutive naturals, for example, 901223 + ... + 902310.

Almost surely, 2^981121952 is an apocalyptic number.

It is an amenable number.

981121952 is an abundant number, since it is smaller than the sum of its proper divisors (1064085604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981121952 is a wasteful number, since it uses less digits than its factorization.

981121952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803560 (or 1803552 counting only the distinct ones).

The product of its digits is 12960, while the sum is 38.

The square root of 981121952 is about 31322.8662800836. The cubic root of 981121952 is about 993.6672988836.

The spelling of 981121952 in words is "nine hundred eighty-one million, one hundred twenty-one thousand, nine hundred fifty-two".