71145141 has 16 divisors (see below), whose sum is σ = 99265920. Its totient is φ = 45239040.

The previous prime is 71145121. The next prime is 71145163. The reversal of 71145141 is 14154117.

It is not a de Polignac number, because 71145141 - 2⁶ = 71145077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71145121) 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, 26961 + ... + 29481.

It is an arithmetic number, because the mean of its divisors is an integer number (6204120).

Almost surely, 2^71145141 is an apocalyptic number.

It is an amenable number.

71145141 is a deficient number, since it is larger than the sum of its proper divisors (28120779).

71145141 is a wasteful number, since it uses less digits than its factorization.

71145141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956.

The product of its digits is 560, while the sum is 24.

The square root of 71145141 is about 8434.7579099818. The cubic root of 71145141 is about 414.3637436571.

Adding to 71145141 its reverse (14154117), we get a palindrome (85299258).

The spelling of 71145141 in words is "seventy-one million, one hundred forty-five thousand, one hundred forty-one".