161448379 has 4 divisors (see below), whose sum is σ = 161480176. Its totient is φ = 161416584.

The previous prime is 161448323. The next prime is 161448389. The reversal of 161448379 is 973844161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973844161 = 173 ⋅5629157.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161448379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161448319) 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, 6384 + ... + 19069.

It is an arithmetic number, because the mean of its divisors is an integer number (40370044).

Almost surely, 2^161448379 is an apocalyptic number.

161448379 is a deficient number, since it is larger than the sum of its proper divisors (31797).

161448379 is an equidigital number, since it uses as much as digits as its factorization.

161448379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31796.

The product of its digits is 145152, while the sum is 43.

The square root of 161448379 is about 12706.2338637379. The cubic root of 161448379 is about 544.5167323317.

The spelling of 161448379 in words is "one hundred sixty-one million, four hundred forty-eight thousand, three hundred seventy-nine".