161053447 has 6 divisors (see below), whose sum is σ = 164887872. Its totient is φ = 157306212.

The previous prime is 161053411. The next prime is 161053507. The reversal of 161053447 is 744350161.

It is a de Polignac number, because none of the positive numbers 2^k-161053447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161053147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41703 + ... + 45400.

It is an arithmetic number, because the mean of its divisors is an integer number (27481312).

Almost surely, 2^161053447 is an apocalyptic number.

161053447 is a deficient number, since it is larger than the sum of its proper divisors (3834425).

161053447 is an frugal number, since it uses more digits than its factorization.

161053447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87189 (or 87146 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 161053447 is about 12690.6834725321. The cubic root of 161053447 is about 544.0723742646.

The spelling of 161053447 in words is "one hundred sixty-one million, fifty-three thousand, four hundred forty-seven".