71040651 has 16 divisors (see below), whose sum is σ = 103673088. Its totient is φ = 42912800.

The previous prime is 71040589. The next prime is 71040653. The reversal of 71040651 is 15604017.

It is a cyclic number.

It is not a de Polignac number, because 71040651 - 2¹⁹ = 70516363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71040653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7066 + ... + 13856.

It is an arithmetic number, because the mean of its divisors is an integer number (6479568).

Almost surely, 2^71040651 is an apocalyptic number.

71040651 is a deficient number, since it is larger than the sum of its proper divisors (32632437).

71040651 is a wasteful number, since it uses less digits than its factorization.

71040651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122.

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

The square root of 71040651 is about 8428.5616210597. The cubic root of 71040651 is about 414.1607872743.

Adding to 71040651 its reverse (15604017), we get a palindrome (86644668).

The spelling of 71040651 in words is "seventy-one million, forty thousand, six hundred fifty-one".