1161407127 has 4 divisors (see below), whose sum is σ = 1548542840. Its totient is φ = 774271416.

The previous prime is 1161407119. The next prime is 1161407141. The reversal of 1161407127 is 7217041611.

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

It is not a de Polignac number, because 1161407127 - 2³ = 1161407119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1161407094 and 1161407103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161402127) 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, 193567852 + ... + 193567857.

It is an arithmetic number, because the mean of its divisors is an integer number (387135710).

Almost surely, 2^1161407127 is an apocalyptic number.

1161407127 is a deficient number, since it is larger than the sum of its proper divisors (387135713).

1161407127 is an equidigital number, since it uses as much as digits as its factorization.

1161407127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387135712.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 1161407127 is about 34079.4238067488. The cubic root of 1161407127 is about 1051.1422571558.

Adding to 1161407127 its reverse (7217041611), we get a palindrome (8378448738).

The spelling of 1161407127 in words is "one billion, one hundred sixty-one million, four hundred seven thousand, one hundred twenty-seven".