1165450027 has 16 divisors (see below), whose sum is σ = 1365154560. Its totient is φ = 974125152.

The previous prime is 1165450003. The next prime is 1165450049. The reversal of 1165450027 is 7200545611.

It is a de Polignac number, because none of the positive numbers 2^k-1165450027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165456027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202749 + ... + 208417.

It is an arithmetic number, because the mean of its divisors is an integer number (85322160).

Almost surely, 2^1165450027 is an apocalyptic number.

1165450027 is a deficient number, since it is larger than the sum of its proper divisors (199704533).

1165450027 is an equidigital number, since it uses as much as digits as its factorization.

1165450027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6402.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1165450027 is about 34138.6881265230. The cubic root of 1165450027 is about 1052.3605326339.

Adding to 1165450027 its reverse (7200545611), we get a palindrome (8365995638).

The spelling of 1165450027 in words is "one billion, one hundred sixty-five million, four hundred fifty thousand, twenty-seven".