71268645 has 16 divisors (see below), whose sum is σ = 130320000. Its totient is φ = 32579904.

The previous prime is 71268611. The next prime is 71268649. The reversal of 71268645 is 54686217.

It is not a de Polignac number, because 71268645 - 2⁶ = 71268581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71268649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339270 + ... + 339479.

It is an arithmetic number, because the mean of its divisors is an integer number (8145000).

Almost surely, 2^71268645 is an apocalyptic number.

It is an amenable number.

71268645 is a deficient number, since it is larger than the sum of its proper divisors (59051355).

71268645 is a wasteful number, since it uses less digits than its factorization.

71268645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678764.

The product of its digits is 80640, while the sum is 39.

The square root of 71268645 is about 8442.0758703058. The cubic root of 71268645 is about 414.6033758369.

The spelling of 71268645 in words is "seventy-one million, two hundred sixty-eight thousand, six hundred forty-five".