71006451 has 16 divisors (see below), whose sum is σ = 99121920. Its totient is φ = 45128160.

The previous prime is 71006431. The next prime is 71006473. The reversal of 71006451 is 15460017.

It is not a de Polignac number, because 71006451 - 2⁶ = 71006387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71006431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21285 + ... + 24393.

It is an arithmetic number, because the mean of its divisors is an integer number (6195120).

Almost surely, 2^71006451 is an apocalyptic number.

71006451 is a deficient number, since it is larger than the sum of its proper divisors (28115469).

71006451 is a wasteful number, since it uses less digits than its factorization.

71006451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 71006451 is about 8426.5325609055. The cubic root of 71006451 is about 414.0943156025.

Adding to 71006451 its reverse (15460017), we get a palindrome (86466468).

The spelling of 71006451 in words is "seventy-one million, six thousand, four hundred fifty-one".