161422358 has 4 divisors (see below), whose sum is σ = 242133540. Its totient is φ = 80711178.

The previous prime is 161422343. The next prime is 161422369. The reversal of 161422358 is 853224161.

161422358 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: 853224161 = 6199 ⋅137639.

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, 40355588 + ... + 40355591.

It is an arithmetic number, because the mean of its divisors is an integer number (60533385).

Almost surely, 2^161422358 is an apocalyptic number.

161422358 is a deficient number, since it is larger than the sum of its proper divisors (80711182).

161422358 is an equidigital number, since it uses as much as digits as its factorization.

161422358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80711181.

The product of its digits is 11520, while the sum is 32.

The square root of 161422358 is about 12705.2098762673. The cubic root of 161422358 is about 544.4874770960.

The spelling of 161422358 in words is "one hundred sixty-one million, four hundred twenty-two thousand, three hundred fifty-eight".