981452281 has 8 divisors (see below), whose sum is σ = 1013788928. Its totient is φ = 949158000.

The previous prime is 981452243. The next prime is 981452299. The reversal of 981452281 is 182254189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 981452281 - 2¹¹ = 981450233 is a prime.

It is a super-2 number, since 2×981452281² = 1926497159760205922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981452221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40486 + ... + 60016.

It is an arithmetic number, because the mean of its divisors is an integer number (126723616).

Almost surely, 2^981452281 is an apocalyptic number.

It is an amenable number.

981452281 is a deficient number, since it is larger than the sum of its proper divisors (32336647).

981452281 is a wasteful number, since it uses less digits than its factorization.

981452281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21183.

The product of its digits is 46080, while the sum is 40.

The square root of 981452281 is about 31328.1388052339. The cubic root of 981452281 is about 993.7788039803.

The spelling of 981452281 in words is "nine hundred eighty-one million, four hundred fifty-two thousand, two hundred eighty-one".