161020054 has 16 divisors (see below), whose sum is σ = 261424800. Its totient is φ = 73941120.

The previous prime is 161020043. The next prime is 161020061. The reversal of 161020054 is 450020161.

161020054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10387 + ... + 20734.

It is an arithmetic number, because the mean of its divisors is an integer number (16339050).

Almost surely, 2^161020054 is an apocalyptic number.

161020054 is a deficient number, since it is larger than the sum of its proper divisors (100404746).

161020054 is a wasteful number, since it uses less digits than its factorization.

161020054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31335.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 161020054 is about 12689.3677541476. The cubic root of 161020054 is about 544.0347688093.

The spelling of 161020054 in words is "one hundred sixty-one million, twenty thousand, fifty-four".