172263023 has 4 divisors (see below), whose sum is σ = 182396160. Its totient is φ = 162129888.

The previous prime is 172263019. The next prime is 172263061. The reversal of 172263023 is 320362271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320362271 = 59 ⋅5429869.

It is a cyclic number.

It is not a de Polignac number, because 172263023 - 2² = 172263019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172262983 and 172263001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172263073) 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 3 ways as a sum of consecutive naturals, for example, 5066543 + ... + 5066576.

It is an arithmetic number, because the mean of its divisors is an integer number (45599040).

Almost surely, 2^172263023 is an apocalyptic number.

172263023 is a deficient number, since it is larger than the sum of its proper divisors (10133137).

172263023 is a wasteful number, since it uses less digits than its factorization.

172263023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10133136.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 172263023 is about 13124.9008758162. The cubic root of 172263023 is about 556.4131108075.

The spelling of 172263023 in words is "one hundred seventy-two million, two hundred sixty-three thousand, twenty-three".