71436151 has 4 divisors (see below), whose sum is σ = 71456112. Its totient is φ = 71416192.

The previous prime is 71436149. The next prime is 71436163. The reversal of 71436151 is 15163417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15163417 = 23 ⋅659279.

It is a cyclic number.

It is not a de Polignac number, because 71436151 - 2¹ = 71436149 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 (71436451) 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, 2971 + ... + 12316.

It is an arithmetic number, because the mean of its divisors is an integer number (17864028).

Almost surely, 2^71436151 is an apocalyptic number.

71436151 is a deficient number, since it is larger than the sum of its proper divisors (19961).

71436151 is a wasteful number, since it uses less digits than its factorization.

71436151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19960.

The product of its digits is 2520, while the sum is 28.

The square root of 71436151 is about 8451.9909488830. The cubic root of 71436151 is about 414.9279421995.

Adding to 71436151 its reverse (15163417), we get a palindrome (86599568).

The spelling of 71436151 in words is "seventy-one million, four hundred thirty-six thousand, one hundred fifty-one".