71153223 has 4 divisors (see below), whose sum is σ = 94870968. Its totient is φ = 47435480.

The previous prime is 71153221. The next prime is 71153227. The reversal of 71153223 is 32235117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32235117 = 3 ⋅10745039.

It is a cyclic number.

It is not a de Polignac number, because 71153223 - 2¹ = 71153221 is a prime.

It is a super-2 number, since 2×71153223² = 10125562286575458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71153193 and 71153202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71153221) 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, 11858868 + ... + 11858873.

It is an arithmetic number, because the mean of its divisors is an integer number (23717742).

Almost surely, 2^71153223 is an apocalyptic number.

71153223 is a deficient number, since it is larger than the sum of its proper divisors (23717745).

71153223 is a wasteful number, since it uses less digits than its factorization.

71153223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23717744.

The product of its digits is 1260, while the sum is 24.

The square root of 71153223 is about 8435.2369854083. The cubic root of 71153223 is about 414.3794334658.

The spelling of 71153223 in words is "seventy-one million, one hundred fifty-three thousand, two hundred twenty-three".