71816051 has 8 divisors (see below), whose sum is σ = 76767264. Its totient is φ = 67017280.

The previous prime is 71816023. The next prime is 71816083. The reversal of 71816051 is 15061817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71816051 - 2¹⁸ = 71553907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71816011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37136 + ... + 39021.

It is an arithmetic number, because the mean of its divisors is an integer number (9595908).

Almost surely, 2^71816051 is an apocalyptic number.

71816051 is a deficient number, since it is larger than the sum of its proper divisors (4951213).

71816051 is a wasteful number, since it uses less digits than its factorization.

71816051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76221.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 71816051 is about 8474.4351434181. The cubic root of 71816051 is about 415.6621760404.

Adding to 71816051 its reverse (15061817), we get a palindrome (86877868).

The spelling of 71816051 in words is "seventy-one million, eight hundred sixteen thousand, fifty-one".