981005041 has 3 divisors (see below), whose sum is σ = 981036363. Its totient is φ = 980973720.

The previous prime is 981005033. The next prime is 981005059. The reversal of 981005041 is 140500189.

It is a happy number.

The square root of 981005041 is 31321.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 534950641 + 446054400 = 23129^2 + 21120^2 .

It is not a de Polignac number, because 981005041 - 2³ = 981005033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981002041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15661 + ... + 46981.

It is an arithmetic number, because the mean of its divisors is an integer number (327012121).

Almost surely, 2^981005041 is an apocalyptic number.

981005041 is the 31321-st square number.

981005041 is the 15661-st centered octagonal number.

It is an amenable number.

981005041 is a deficient number, since it is larger than the sum of its proper divisors (31322).

981005041 is an frugal number, since it uses more digits than its factorization.

981005041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62642 (or 31321 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The cubic root of 981005041 is about 993.6278286791.

The spelling of 981005041 in words is "nine hundred eighty-one million, five thousand, forty-one".