161351027 has 4 divisors (see below), whose sum is σ = 164395440. Its totient is φ = 158306616.

The previous prime is 161351023. The next prime is 161351033. The reversal of 161351027 is 720153161.

161351027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 161351027 - 2² = 161351023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161350987 and 161351005.

It is not an unprimeable number, because it can be changed into a prime (161351023) 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, 1522127 + ... + 1522232.

It is an arithmetic number, because the mean of its divisors is an integer number (41098860).

Almost surely, 2^161351027 is an apocalyptic number.

161351027 is a deficient number, since it is larger than the sum of its proper divisors (3044413).

161351027 is an equidigital number, since it uses as much as digits as its factorization.

161351027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044412.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 161351027 is about 12702.4024105679. The cubic root of 161351027 is about 544.4072640058.

The spelling of 161351027 in words is "one hundred sixty-one million, three hundred fifty-one thousand, twenty-seven".