79145471 has 2 divisors, whose sum is σ = 79145472. Its totient is φ = 79145470.

The previous prime is 79145447. The next prime is 79145477. The reversal of 79145471 is 17454197.

It is a strong prime.

It is an emirp because it is prime and its reverse (17454197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79145471 - 2¹⁰ = 79144447 is a prime.

It is a super-3 number, since 3×79145471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79145477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39572735 + 39572736.

It is an arithmetic number, because the mean of its divisors is an integer number (39572736).

Almost surely, 2^79145471 is an apocalyptic number.

79145471 is a deficient number, since it is larger than the sum of its proper divisors (1).

79145471 is an equidigital number, since it uses as much as digits as its factorization.

79145471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 79145471 is about 8896.3740366511. The cubic root of 79145471 is about 429.3472537189.

It can be divided in two parts, 79145 and 471, that multiplied together give a triangular number (37277295 = T₈₆₃₄).

The spelling of 79145471 in words is "seventy-nine million, one hundred forty-five thousand, four hundred seventy-one".