161152319 has 4 divisors (see below), whose sum is σ = 169634040. Its totient is φ = 152670600.

The previous prime is 161152309. The next prime is 161152363. The reversal of 161152319 is 913251161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913251161 = 89 ⋅10261249.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161152319 is a prime.

It is a super-2 number, since 2×161152319² = 51940139838155522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161152291 and 161152300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161152309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4240832 + ... + 4240869.

It is an arithmetic number, because the mean of its divisors is an integer number (42408510).

Almost surely, 2^161152319 is an apocalyptic number.

161152319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

161152319 is a deficient number, since it is larger than the sum of its proper divisors (8481721).

161152319 is an equidigital number, since it uses as much as digits as its factorization.

161152319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8481720.

The product of its digits is 1620, while the sum is 29.

The square root of 161152319 is about 12694.5783309254. The cubic root of 161152319 is about 544.1836882838.

The spelling of 161152319 in words is "one hundred sixty-one million, one hundred fifty-two thousand, three hundred nineteen".