161494944 has 48 divisors (see below), whose sum is σ = 456537312. Its totient is φ = 49690368.

The previous prime is 161494933. The next prime is 161494979. The reversal of 161494944 is 449494161.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 161494896 and 161494905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63454 + ... + 65949.

It is an arithmetic number, because the mean of its divisors is an integer number (9511194).

Almost surely, 2^161494944 is an apocalyptic number.

It is an amenable number.

161494944 is an abundant number, since it is smaller than the sum of its proper divisors (295042368).

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

161494944 is a wasteful number, since it uses less digits than its factorization.

161494944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129429 (or 129421 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 161494944 is about 12708.0660999225. The cubic root of 161494944 is about 544.5690772040.

The spelling of 161494944 in words is "one hundred sixty-one million, four hundred ninety-four thousand, nine hundred forty-four".