981375283 has 24 divisors (see below), whose sum is σ = 1208504880. Its totient is φ = 793235520.

The previous prime is 981375271. The next prime is 981375299. The reversal of 981375283 is 382573189.

It is not a de Polignac number, because 981375283 - 2²⁵ = 947820851 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981375583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53073 + ... + 69133.

It is an arithmetic number, because the mean of its divisors is an integer number (50354370).

Almost surely, 2^981375283 is an apocalyptic number.

981375283 is a deficient number, since it is larger than the sum of its proper divisors (227129597).

981375283 is a wasteful number, since it uses less digits than its factorization.

981375283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16147 (or 16140 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 981375283 is about 31326.9098859112. The cubic root of 981375283 is about 993.7528149492.

The spelling of 981375283 in words is "nine hundred eighty-one million, three hundred seventy-five thousand, two hundred eighty-three".