71451064 has 32 divisors (see below), whose sum is σ = 140245920. Its totient is φ = 34062336.

The previous prime is 71451053. The next prime is 71451067. The reversal of 71451064 is 46015417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71451067) 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, 105832 + ... + 106504.

It is an arithmetic number, because the mean of its divisors is an integer number (4382685).

Almost surely, 2^71451064 is an apocalyptic number.

It is an amenable number.

71451064 is a deficient number, since it is larger than the sum of its proper divisors (68794856).

71451064 is a wasteful number, since it uses less digits than its factorization.

71451064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1275 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 71451064 is about 8452.8731210163. The cubic root of 71451064 is about 414.9568136219.

The spelling of 71451064 in words is "seventy-one million, four hundred fifty-one thousand, sixty-four".