161153223 has 32 divisors (see below), whose sum is σ = 268918272. Its totient is φ = 83395200.

The previous prime is 161153197. The next prime is 161153243. The reversal of 161153223 is 322351161.

It is not a de Polignac number, because 161153223 - 2⁹ = 161152711 is a prime.

It is a super-2 number, since 2×161153223² = 51940722566575458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161153193 and 161153202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161153243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66493 + ... + 68873.

It is an arithmetic number, because the mean of its divisors is an integer number (8403696).

Almost surely, 2^161153223 is an apocalyptic number.

161153223 is a deficient number, since it is larger than the sum of its proper divisors (107765049).

161153223 is a wasteful number, since it uses less digits than its factorization.

161153223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695.

The product of its digits is 1080, while the sum is 24.

The square root of 161153223 is about 12694.6139366268. The cubic root of 161153223 is about 544.1847058328.

The spelling of 161153223 in words is "one hundred sixty-one million, one hundred fifty-three thousand, two hundred twenty-three".