161354313 has 12 divisors (see below), whose sum is σ = 237465540. Its totient is φ = 105539616.

The previous prime is 161354273. The next prime is 161354339. The reversal of 161354313 is 313453161.

161354313 is a `hidden beast` number, since 1 + 613 + 5 + 43 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 121815369 + 39538944 = 11037^2 + 6288^2 .

It is not a de Polignac number, because 161354313 - 2¹³ = 161346121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161354363) 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, 168658 + ... + 169611.

It is an arithmetic number, because the mean of its divisors is an integer number (19788795).

Almost surely, 2^161354313 is an apocalyptic number.

It is an amenable number.

161354313 is a deficient number, since it is larger than the sum of its proper divisors (76111227).

161354313 is a wasteful number, since it uses less digits than its factorization.

161354313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338328 (or 338325 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 161354313 is about 12702.5317555202. The cubic root of 161354313 is about 544.4109596958.

The spelling of 161354313 in words is "one hundred sixty-one million, three hundred fifty-four thousand, three hundred thirteen".