161306027 has 2 divisors, whose sum is σ = 161306028. Its totient is φ = 161306026.

The previous prime is 161306023. The next prime is 161306063. The reversal of 161306027 is 720603161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161306027 - 2² = 161306023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161305987 and 161306005.

It is not a weakly prime, because it can be changed into another prime (161306023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80653013 + 80653014.

It is an arithmetic number, because the mean of its divisors is an integer number (80653014).

Almost surely, 2^161306027 is an apocalyptic number.

161306027 is a deficient number, since it is larger than the sum of its proper divisors (1).

161306027 is an equidigital number, since it uses as much as digits as its factorization.

161306027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 161306027 is about 12700.6309685779. The cubic root of 161306027 is about 544.3566484727.

Adding to 161306027 its reverse (720603161), we get a palindrome (881909188).

The spelling of 161306027 in words is "one hundred sixty-one million, three hundred six thousand, twenty-seven".