981039275 has 24 divisors (see below), whose sum is σ = 1273003344. Its totient is φ = 749174400.

The previous prime is 981039253. The next prime is 981039307. The reversal of 981039275 is 572930189.

It is not a de Polignac number, because 981039275 - 2⁶ = 981039211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39020 + ... + 59030.

It is an arithmetic number, because the mean of its divisors is an integer number (53041806).

Almost surely, 2^981039275 is an apocalyptic number.

981039275 is a deficient number, since it is larger than the sum of its proper divisors (291964069).

981039275 is a wasteful number, since it uses less digits than its factorization.

981039275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20111 (or 20106 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 981039275 is about 31321.5464975789. The cubic root of 981039275 is about 993.6393867099.

The spelling of 981039275 in words is "nine hundred eighty-one million, thirty-nine thousand, two hundred seventy-five".