161059423 has 8 divisors (see below), whose sum is σ = 187824800. Its totient is φ = 138050640.

The previous prime is 161059403. The next prime is 161059429. The reversal of 161059423 is 324950161.

It is not a de Polignac number, because 161059423 - 2¹⁷ = 160928351 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 (161059429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234438 + ... + 235123.

It is an arithmetic number, because the mean of its divisors is an integer number (23478100).

Almost surely, 2^161059423 is an apocalyptic number.

161059423 is a deficient number, since it is larger than the sum of its proper divisors (26765377).

161059423 is an frugal number, since it uses more digits than its factorization.

161059423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469582 (or 469568 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 161059423 is about 12690.9189186599. The cubic root of 161059423 is about 544.0791035758.

The spelling of 161059423 in words is "one hundred sixty-one million, fifty-nine thousand, four hundred twenty-three".