71158157 has 8 divisors (see below), whose sum is σ = 81402432. Its totient is φ = 60933600.

The previous prime is 71158127. The next prime is 71158169. The reversal of 71158157 is 75185117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71158157 - 2¹⁰ = 71157133 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 (71158127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3857 + ... + 12537.

It is an arithmetic number, because the mean of its divisors is an integer number (10175304).

Almost surely, 2^71158157 is an apocalyptic number.

It is an amenable number.

71158157 is a deficient number, since it is larger than the sum of its proper divisors (10244275).

71158157 is a wasteful number, since it uses less digits than its factorization.

71158157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9859.

The product of its digits is 9800, while the sum is 35.

The square root of 71158157 is about 8435.5294439650. The cubic root of 71158157 is about 414.3890113916.

The spelling of 71158157 in words is "seventy-one million, one hundred fifty-eight thousand, one hundred fifty-seven".