71144270 has 8 divisors (see below), whose sum is σ = 128059704. Its totient is φ = 28457704.

The previous prime is 71144261. The next prime is 71144273. The reversal of 71144270 is 7244117.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71144273) 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, 3557204 + ... + 3557223.

It is an arithmetic number, because the mean of its divisors is an integer number (16007463).

Almost surely, 2^71144270 is an apocalyptic number.

71144270 is a deficient number, since it is larger than the sum of its proper divisors (56915434).

71144270 is a wasteful number, since it uses less digits than its factorization.

71144270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114434.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 71144270 is about 8434.7062782293. The cubic root of 71144270 is about 414.3620526899.

Adding to 71144270 its reverse (7244117), we get a palindrome (78388387).

The spelling of 71144270 in words is "seventy-one million, one hundred forty-four thousand, two hundred seventy".