1040347161 has 24 divisors (see below), whose sum is σ = 1759290624. Its totient is φ = 579983040.

The previous prime is 1040347159. The next prime is 1040347183. The reversal of 1040347161 is 1617430401.

It is a happy number.

It is not a de Polignac number, because 1040347161 - 2¹ = 1040347159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1040347141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198801 + ... + 203966.

It is an arithmetic number, because the mean of its divisors is an integer number (73303776).

Almost surely, 2^1040347161 is an apocalyptic number.

It is an amenable number.

1040347161 is a deficient number, since it is larger than the sum of its proper divisors (718943463).

1040347161 is a wasteful number, since it uses less digits than its factorization.

1040347161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402821 (or 402818 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1040347161 is about 32254.4130468995. The cubic root of 1040347161 is about 1013.2721250709.

Adding to 1040347161 its reverse (1617430401), we get a palindrome (2657777562).

The spelling of 1040347161 in words is "one billion, forty million, three hundred forty-seven thousand, one hundred sixty-one".