71445070 has 8 divisors (see below), whose sum is σ = 128601144. Its totient is φ = 28578024.

The previous prime is 71445043. The next prime is 71445071. The reversal of 71445070 is 7054417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71445071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3572244 + ... + 3572263.

It is an arithmetic number, because the mean of its divisors is an integer number (16075143).

Almost surely, 2^71445070 is an apocalyptic number.

71445070 is a deficient number, since it is larger than the sum of its proper divisors (57156074).

71445070 is a wasteful number, since it uses less digits than its factorization.

71445070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144514.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 71445070 is about 8452.5185595774. The cubic root of 71445070 is about 414.9452097793.

Adding to 71445070 its reverse (7054417), we get a palindrome (78499487).

The spelling of 71445070 in words is "seventy-one million, four hundred forty-five thousand, seventy".