161006313 has 8 divisors (see below), whose sum is σ = 231188608. Its totient is φ = 99080784.

The previous prime is 161006311. The next prime is 161006357. The reversal of 161006313 is 313600161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161006313 - 2¹ = 161006311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161006313.

It is not an unprimeable number, because it can be changed into a prime (161006311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2064145 + ... + 2064222.

It is an arithmetic number, because the mean of its divisors is an integer number (28898576).

Almost surely, 2^161006313 is an apocalyptic number.

161006313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161006313 is a deficient number, since it is larger than the sum of its proper divisors (70182295).

161006313 is a wasteful number, since it uses less digits than its factorization.

161006313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128383.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 161006313 is about 12688.8263050607. The cubic root of 161006313 is about 544.0192929018.

Adding to 161006313 its reverse (313600161), we get a palindrome (474606474).

The spelling of 161006313 in words is "one hundred sixty-one million, six thousand, three hundred thirteen".