161236214 has 4 divisors (see below), whose sum is σ = 241854324. Its totient is φ = 80618106.

The previous prime is 161236189. The next prime is 161236277. The reversal of 161236214 is 412632161.

161236214 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, and also an emirpimes, since its reverse is a distinct semiprime: 412632161 = 173 ⋅2385157.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40309052 + ... + 40309055.

It is an arithmetic number, because the mean of its divisors is an integer number (60463581).

Almost surely, 2^161236214 is an apocalyptic number.

161236214 is a deficient number, since it is larger than the sum of its proper divisors (80618110).

161236214 is an equidigital number, since it uses as much as digits as its factorization.

161236214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80618109.

The product of its digits is 1728, while the sum is 26.

The square root of 161236214 is about 12697.8822643778. The cubic root of 161236214 is about 544.2781049008.

Adding to 161236214 its reverse (412632161), we get a palindrome (573868375).

The spelling of 161236214 in words is "one hundred sixty-one million, two hundred thirty-six thousand, two hundred fourteen".