71117153 has 4 divisors (see below), whose sum is σ = 71436288. Its totient is φ = 70798020.

The previous prime is 71117129. The next prime is 71117177. The reversal of 71117153 is 35171117.

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.

It is an interprime number because it is at equal distance from previous prime (71117129) and next prime (71117177).

It is a cyclic number.

It is not a de Polignac number, because 71117153 - 2⁶ = 71117089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71117113) 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, 159233 + ... + 159678.

It is an arithmetic number, because the mean of its divisors is an integer number (17859072).

Almost surely, 2^71117153 is an apocalyptic number.

It is an amenable number.

71117153 is a deficient number, since it is larger than the sum of its proper divisors (319135).

71117153 is a wasteful number, since it uses less digits than its factorization.

71117153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319134.

The product of its digits is 735, while the sum is 26.

The square root of 71117153 is about 8433.0986594490. The cubic root of 71117153 is about 414.3094005992.

The spelling of 71117153 in words is "seventy-one million, one hundred seventeen thousand, one hundred fifty-three".