161052073 has 12 divisors (see below), whose sum is σ = 201758340. Its totient is φ = 127425312.

The previous prime is 161052053. The next prime is 161052077. The reversal of 161052073 is 370250161.

It can be written as a sum of positive squares in 2 ways, for example, as 18774889 + 142277184 = 4333^2 + 11928^2 .

It is not a de Polignac number, because 161052073 - 2¹⁷ = 160921001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161052077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125778 + ... + 127051.

It is an arithmetic number, because the mean of its divisors is an integer number (16813195).

Almost surely, 2^161052073 is an apocalyptic number.

161052073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161052073 is a deficient number, since it is larger than the sum of its proper divisors (40706267).

161052073 is a wasteful number, since it uses less digits than its factorization.

161052073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252856 (or 252849 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 161052073 is about 12690.6293382164. The cubic root of 161052073 is about 544.0708270400.

The spelling of 161052073 in words is "one hundred sixty-one million, fifty-two thousand, seventy-three".