161386893 has 12 divisors (see below), whose sum is σ = 245383840. Its totient is φ = 101928456.

The previous prime is 161386877. The next prime is 161386903. The reversal of 161386893 is 398683161.

It is a happy number.

161386893 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 161386893 - 2⁴ = 161386877 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 (161386843) 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, 471721 + ... + 472062.

Almost surely, 2^161386893 is an apocalyptic number.

It is an amenable number.

161386893 is a deficient number, since it is larger than the sum of its proper divisors (83996947).

161386893 is a wasteful number, since it uses less digits than its factorization.

161386893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943808 (or 943805 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 161386893 is about 12703.8141123050. The cubic root of 161386893 is about 544.4475989713.

The spelling of 161386893 in words is "one hundred sixty-one million, three hundred eighty-six thousand, eight hundred ninety-three".