9940917141 has 6 divisors (see below), whose sum is σ = 14359102550. Its totient is φ = 6627278088.

The previous prime is 9940917137. The next prime is 9940917197. The reversal of 9940917141 is 1417190499.

9940917141 is a `hidden beast` number, since 99 + 409 + 17 + 141 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6719900625 + 3221016516 = 81975^2 + 56754^2 .

It is not a de Polignac number, because 9940917141 - 2² = 9940917137 is a prime.

It is a super-2 number, since 2×9940917141² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9940917241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552273166 + ... + 552273183.

Almost surely, 2^9940917141 is an apocalyptic number.

It is an amenable number.

9940917141 is a deficient number, since it is larger than the sum of its proper divisors (4418185409).

9940917141 is a wasteful number, since it uses less digits than its factorization.

9940917141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104546355 (or 1104546352 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 9940917141 is about 99704.1480631573. The cubic root of 9940917141 is about 2150.1833008314.

The spelling of 9940917141 in words is "nine billion, nine hundred forty million, nine hundred seventeen thousand, one hundred forty-one".