161485713 has 12 divisors (see below), whose sum is σ = 236068560. Its totient is φ = 106359576.

The previous prime is 161485699. The next prime is 161485729. The reversal of 161485713 is 317584161.

161485713 is a `hidden beast` number, since 161 + 485 + 7 + 13 = 666.

It is not a de Polignac number, because 161485713 - 2⁹ = 161485201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161485763) 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, 107343 + ... + 108836.

It is an arithmetic number, because the mean of its divisors is an integer number (19672380).

Almost surely, 2^161485713 is an apocalyptic number.

It is an amenable number.

161485713 is a deficient number, since it is larger than the sum of its proper divisors (74582847).

161485713 is a wasteful number, since it uses less digits than its factorization.

161485713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216268 (or 216265 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 161485713 is about 12707.7029002098. The cubic root of 161485713 is about 544.5587012075.

The spelling of 161485713 in words is "one hundred sixty-one million, four hundred eighty-five thousand, seven hundred thirteen".