71170151 has 4 divisors (see below), whose sum is σ = 76644792. Its totient is φ = 65695512.

The previous prime is 71170139. The next prime is 71170153. The reversal of 71170151 is 15107117.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71170151 - 2²² = 66975847 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 (71170153) 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, 2737301 + ... + 2737326.

It is an arithmetic number, because the mean of its divisors is an integer number (19161198).

Almost surely, 2^71170151 is an apocalyptic number.

71170151 is a deficient number, since it is larger than the sum of its proper divisors (5474641).

71170151 is a wasteful number, since it uses less digits than its factorization.

71170151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474640.

The product of its (nonzero) digits is 245, while the sum is 23.

The square root of 71170151 is about 8436.2403355997. The cubic root of 71170151 is about 414.4122924077.

Adding to 71170151 its reverse (15107117), we get a palindrome (86277268).

The spelling of 71170151 in words is "seventy-one million, one hundred seventy thousand, one hundred fifty-one".