71851053 has 16 divisors (see below), whose sum is σ = 98366720. Its totient is φ = 46635264.

The previous prime is 71851051. The next prime is 71851063. The reversal of 71851053 is 35015817.

It is not a de Polignac number, because 71851053 - 2¹ = 71851051 is a prime.

It is the 8477-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71851053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71851051) by changing a digit.

It is a nontrivial repunit in base 8476.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15225 + ... + 19377.

It is an arithmetic number, because the mean of its divisors is an integer number (6147920).

Almost surely, 2^71851053 is an apocalyptic number.

71851053 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

71851053 is a deficient number, since it is larger than the sum of its proper divisors (26515667).

71851053 is a wasteful number, since it uses less digits than its factorization.

71851053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 71851053 is about 8476.5000442400. The cubic root of 71851053 is about 415.7296941150.

The spelling of 71851053 in words is "seventy-one million, eight hundred fifty-one thousand, fifty-three".