71064151 has 4 divisors (see below), whose sum is σ = 71328600. Its totient is φ = 70799704.

The previous prime is 71064127. The next prime is 71064173. The reversal of 71064151 is 15146017.

It is a happy number.

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 71064151 - 2⁹ = 71063639 is a prime.

It is a super-2 number, since 2×71064151² = 10100227114701602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71064751) 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, 131821 + ... + 132358.

It is an arithmetic number, because the mean of its divisors is an integer number (17832150).

Almost surely, 2^71064151 is an apocalyptic number.

71064151 is a deficient number, since it is larger than the sum of its proper divisors (264449).

71064151 is a wasteful number, since it uses less digits than its factorization.

71064151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264448.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 71064151 is about 8429.9555752092. The cubic root of 71064151 is about 414.2064498884.

The spelling of 71064151 in words is "seventy-one million, sixty-four thousand, one hundred fifty-one".