323161253 has 4 divisors (see below), whose sum is σ = 340169760. Its totient is φ = 306152748.

The previous prime is 323161249. The next prime is 323161259. The reversal of 323161253 is 352161323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352161323 = 317 ⋅1110919.

It is a cyclic number.

It is not a de Polignac number, because 323161253 - 2² = 323161249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323161259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8504225 + ... + 8504262.

It is an arithmetic number, because the mean of its divisors is an integer number (85042440).

Almost surely, 2^323161253 is an apocalyptic number.

It is an amenable number.

323161253 is a deficient number, since it is larger than the sum of its proper divisors (17008507).

323161253 is a wasteful number, since it uses less digits than its factorization.

323161253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17008506.

The product of its digits is 3240, while the sum is 26.

The square root of 323161253 is about 17976.6863743016. The cubic root of 323161253 is about 686.2353632290.

The spelling of 323161253 in words is "three hundred twenty-three million, one hundred sixty-one thousand, two hundred fifty-three".