71256701 has 4 divisors (see below), whose sum is σ = 71400000. Its totient is φ = 71113404.

The previous prime is 71256671. The next prime is 71256727. The reversal of 71256701 is 10765217.

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 a cyclic number.

It is not a de Polignac number, because 71256701 - 2¹⁰ = 71255677 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 (71256761) 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, 70901 + ... + 71898.

It is an arithmetic number, because the mean of its divisors is an integer number (17850000).

Almost surely, 2^71256701 is an apocalyptic number.

It is an amenable number.

71256701 is a deficient number, since it is larger than the sum of its proper divisors (143299).

71256701 is a wasteful number, since it uses less digits than its factorization.

71256701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143298.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 71256701 is about 8441.3684317177. The cubic root of 71256701 is about 414.5802132461.

The spelling of 71256701 in words is "seventy-one million, two hundred fifty-six thousand, seven hundred one".