1140927161 has 4 divisors (see below), whose sum is σ = 1244647824. Its totient is φ = 1037206500.

The previous prime is 1140927119. The next prime is 1140927163. The reversal of 1140927161 is 1617290411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1617290411 = 11 ⋅147026401.

It is not a de Polignac number, because 1140927161 - 2¹⁴ = 1140910777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140927163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51860315 + ... + 51860336.

It is an arithmetic number, because the mean of its divisors is an integer number (311161956).

Almost surely, 2^1140927161 is an apocalyptic number.

1140927161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1140927161 is a deficient number, since it is larger than the sum of its proper divisors (103720663).

1140927161 is a wasteful number, since it uses less digits than its factorization.

1140927161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103720662.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1140927161 is about 33777.6133111859. The cubic root of 1140927161 is about 1044.9270527439.

The spelling of 1140927161 in words is "one billion, one hundred forty million, nine hundred twenty-seven thousand, one hundred sixty-one".