161263448 has 16 divisors (see below), whose sum is σ = 302688960. Its totient is φ = 80546400.

The previous prime is 161263423. The next prime is 161263483. The reversal of 161263448 is 844362161.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2243 + ... + 18098.

It is an arithmetic number, because the mean of its divisors is an integer number (18918060).

Almost surely, 2^161263448 is an apocalyptic number.

It is an amenable number.

161263448 is a deficient number, since it is larger than the sum of its proper divisors (141425512).

161263448 is a wasteful number, since it uses less digits than its factorization.

161263448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21338 (or 21334 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 161263448 is about 12698.9546026435. The cubic root of 161263448 is about 544.3087473871.

The spelling of 161263448 in words is "one hundred sixty-one million, two hundred sixty-three thousand, four hundred forty-eight".