71740141 has 16 divisors (see below), whose sum is σ = 79902720. Its totient is φ = 63866880.

The previous prime is 71740139. The next prime is 71740147. The reversal of 71740141 is 14104717.

It is a happy number.

It is not a de Polignac number, because 71740141 - 2¹ = 71740139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71740147) 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, 124045 + ... + 124621.

It is an arithmetic number, because the mean of its divisors is an integer number (4993920).

Almost surely, 2^71740141 is an apocalyptic number.

It is an amenable number.

71740141 is a deficient number, since it is larger than the sum of its proper divisors (8162579).

71740141 is a wasteful number, since it uses less digits than its factorization.

71740141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 71740141 is about 8469.9551946867. The cubic root of 71740141 is about 415.5156719321.

Adding to 71740141 its reverse (14104717), we get a palindrome (85844858).

The spelling of 71740141 in words is "seventy-one million, seven hundred forty thousand, one hundred forty-one".