161448316 has 48 divisors (see below), whose sum is σ = 310109184. Its totient is φ = 73313856.

The previous prime is 161448257. The next prime is 161448319. The reversal of 161448316 is 613844161.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 145821 + ... + 146923.

It is an arithmetic number, because the mean of its divisors is an integer number (6460608).

Almost surely, 2^161448316 is an apocalyptic number.

It is an amenable number.

161448316 is a deficient number, since it is larger than the sum of its proper divisors (148660868).

161448316 is a wasteful number, since it uses less digits than its factorization.

161448316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1208 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 161448316 is about 12706.2313846396. The cubic root of 161448316 is about 544.5166615050.

The spelling of 161448316 in words is "one hundred sixty-one million, four hundred forty-eight thousand, three hundred sixteen".