981141953 has 4 divisors (see below), whose sum is σ = 1070336688. Its totient is φ = 891947220.

The previous prime is 981141947. The next prime is 981141991. The reversal of 981141953 is 359141189.

981141953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 981141953 - 2²⁰ = 980093377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 981141953.

It is not an unprimeable number, because it can be changed into a prime (981141653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44597351 + ... + 44597372.

It is an arithmetic number, because the mean of its divisors is an integer number (267584172).

Almost surely, 2^981141953 is an apocalyptic number.

It is an amenable number.

981141953 is a deficient number, since it is larger than the sum of its proper divisors (89194735).

981141953 is a wasteful number, since it uses less digits than its factorization.

981141953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89194734.

The product of its digits is 38880, while the sum is 41.

The square root of 981141953 is about 31323.1855500043. The cubic root of 981141953 is about 993.6740510868.

The spelling of 981141953 in words is "nine hundred eighty-one million, one hundred forty-one thousand, nine hundred fifty-three".