1040161161 has 8 divisors (see below), whose sum is σ = 1493564800. Its totient is φ = 640099152.

The previous prime is 1040161153. The next prime is 1040161181. The reversal of 1040161161 is 1611610401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1040161161 - 2³ = 1040161153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1040161151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13335361 + ... + 13335438.

It is an arithmetic number, because the mean of its divisors is an integer number (186695600).

Almost surely, 2^1040161161 is an apocalyptic number.

It is an amenable number.

1040161161 is a deficient number, since it is larger than the sum of its proper divisors (453403639).

1040161161 is a wasteful number, since it uses less digits than its factorization.

1040161161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26670815.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1040161161 is about 32251.5295916333. The cubic root of 1040161161 is about 1013.2117350219.

Adding to 1040161161 its reverse (1611610401), we get a palindrome (2651771562).

The spelling of 1040161161 in words is "one billion, forty million, one hundred sixty-one thousand, one hundred sixty-one".