1161409107 has 4 divisors (see below), whose sum is σ = 1548545480. Its totient is φ = 774272736.

The previous prime is 1161409103. The next prime is 1161409133. The reversal of 1161409107 is 7019041611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1161409107 - 2² = 1161409103 is a prime.

It is a super-2 number, since 2×1161409107² = 2697742227645074898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161409103) 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, 193568182 + ... + 193568187.

It is an arithmetic number, because the mean of its divisors is an integer number (387136370).

Almost surely, 2^1161409107 is an apocalyptic number.

1161409107 is a deficient number, since it is larger than the sum of its proper divisors (387136373).

1161409107 is an equidigital number, since it uses as much as digits as its factorization.

1161409107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387136372.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 1161409107 is about 34079.4528565234. The cubic root of 1161409107 is about 1051.1428544945.

The spelling of 1161409107 in words is "one billion, one hundred sixty-one million, four hundred nine thousand, one hundred seven".