917948141 has 4 divisors (see below), whose sum is σ = 1001397984. Its totient is φ = 834498300.

The previous prime is 917948123. The next prime is 917948179. The reversal of 917948141 is 141849719.

It is a happy number.

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 917948141 - 2¹⁴ = 917931757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 917948092 and 917948101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917944141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41724905 + ... + 41724926.

It is an arithmetic number, because the mean of its divisors is an integer number (250349496).

Almost surely, 2^917948141 is an apocalyptic number.

It is an amenable number.

917948141 is a deficient number, since it is larger than the sum of its proper divisors (83449843).

917948141 is a wasteful number, since it uses less digits than its factorization.

917948141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83449842.

The product of its digits is 72576, while the sum is 44.

The square root of 917948141 is about 30297.6590019757. The cubic root of 917948141 is about 971.8652390551.

The spelling of 917948141 in words is "nine hundred seventeen million, nine hundred forty-eight thousand, one hundred forty-one".