161020293 has 16 divisors (see below), whose sum is σ = 253280256. Its totient is φ = 89043120.

The previous prime is 161020283. The next prime is 161020331. The reversal of 161020293 is 392020161.

161020293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161020293 - 2⁸ = 161020037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161020213) 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, 123021 + ... + 124322.

It is an arithmetic number, because the mean of its divisors is an integer number (15830016).

Almost surely, 2^161020293 is an apocalyptic number.

It is an amenable number.

161020293 is a deficient number, since it is larger than the sum of its proper divisors (92259963).

161020293 is a wasteful number, since it uses less digits than its factorization.

161020293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247384.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 161020293 is about 12689.3771714769. The cubic root of 161020293 is about 544.0350379771.

The spelling of 161020293 in words is "one hundred sixty-one million, twenty thousand, two hundred ninety-three".