161448479 has 4 divisors (see below), whose sum is σ = 163660176. Its totient is φ = 159236784.

The previous prime is 161448451. The next prime is 161448487. The reversal of 161448479 is 974844161.

It is a happy number.

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 161448479 - 2²⁰ = 160399903 is a prime.

It is a super-2 number, since 2×161448479² = 52131222742826882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161448409) 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, 1105739 + ... + 1105884.

It is an arithmetic number, because the mean of its divisors is an integer number (40915044).

Almost surely, 2^161448479 is an apocalyptic number.

161448479 is a deficient number, since it is larger than the sum of its proper divisors (2211697).

161448479 is an equidigital number, since it uses as much as digits as its factorization.

161448479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211696.

The product of its digits is 193536, while the sum is 44.

The square root of 161448479 is about 12706.2377988136. The cubic root of 161448479 is about 544.5168447550.

The spelling of 161448479 in words is "one hundred sixty-one million, four hundred forty-eight thousand, four hundred seventy-nine".