71468645 has 24 divisors (see below), whose sum is σ = 90261864. Its totient is φ = 54302976.

The previous prime is 71468641. The next prime is 71468651. The reversal of 71468645 is 54686417.

It can be written as a sum of positive squares in 12 ways, for example, as 12271009 + 59197636 = 3503^2 + 7694^2 .

It is not a de Polignac number, because 71468645 - 2² = 71468641 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71468641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362687 + ... + 362883.

It is an arithmetic number, because the mean of its divisors is an integer number (3760911).

Almost surely, 2^71468645 is an apocalyptic number.

It is an amenable number.

71468645 is a deficient number, since it is larger than the sum of its proper divisors (18793219).

71468645 is a wasteful number, since it uses less digits than its factorization.

71468645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 292 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 71468645 is about 8453.9129993158. The cubic root of 71468645 is about 414.9908451070.

It can be divided in two parts, 7146 and 8645, that multiplied together give a triangular number (61777170 = T₁₁₁₁₅).

The spelling of 71468645 in words is "seventy-one million, four hundred sixty-eight thousand, six hundred forty-five".