161048272 has 80 divisors (see below), whose sum is σ = 399652992. Its totient is φ = 61032960.

The previous prime is 161048233. The next prime is 161048311. The reversal of 161048272 is 272840161.

It is an interprime number because it is at equal distance from previous prime (161048233) and next prime (161048311).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43818 + ... + 47350.

Almost surely, 2^161048272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161048272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199826496).

161048272 is an abundant number, since it is smaller than the sum of its proper divisors (238604720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161048272 is a wasteful number, since it uses less digits than its factorization.

161048272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596 (or 3590 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 161048272 is about 12690.4795811663. The cubic root of 161048272 is about 544.0665467899.

The spelling of 161048272 in words is "one hundred sixty-one million, forty-eight thousand, two hundred seventy-two".