1027312161 has 8 divisors (see below), whose sum is σ = 1373020320. Its totient is φ = 683239392.

The previous prime is 1027312157. The next prime is 1027312177. The reversal of 1027312161 is 1612137201.

1027312161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1027312161 - 2² = 1027312157 is a prime.

It is a super-2 number, since 2×1027312161² = 2110740552276979842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1027312151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407380 + ... + 409893.

It is an arithmetic number, because the mean of its divisors is an integer number (171627540).

Almost surely, 2^1027312161 is an apocalyptic number.

It is an amenable number.

1027312161 is a deficient number, since it is larger than the sum of its proper divisors (345708159).

1027312161 is an equidigital number, since it uses as much as digits as its factorization.

1027312161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817695.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1027312161 is about 32051.7107343742. The cubic root of 1027312161 is about 1009.0224050544.

Adding to 1027312161 its reverse (1612137201), we get a palindrome (2639449362).

The spelling of 1027312161 in words is "one billion, twenty-seven million, three hundred twelve thousand, one hundred sixty-one".