161958853 has 16 divisors (see below), whose sum is σ = 187830144. Its totient is φ = 136785600.

The previous prime is 161958821. The next prime is 161958857. The reversal of 161958853 is 358859161.

It is not a de Polignac number, because 161958853 - 2⁵ = 161958821 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 (161958857) 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, 195426 + ... + 196252.

It is an arithmetic number, because the mean of its divisors is an integer number (11739384).

Almost surely, 2^161958853 is an apocalyptic number.

It is an amenable number.

161958853 is a deficient number, since it is larger than the sum of its proper divisors (25871291).

161958853 is a wasteful number, since it uses less digits than its factorization.

161958853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its digits is 259200, while the sum is 46.

The square root of 161958853 is about 12726.3055518874. The cubic root of 161958853 is about 545.0900202001.

The spelling of 161958853 in words is "one hundred sixty-one million, nine hundred fifty-eight thousand, eight hundred fifty-three".