71951741 has 4 divisors (see below), whose sum is σ = 71968800. Its totient is φ = 71934684.

The previous prime is 71951729. The next prime is 71951749. The reversal of 71951741 is 14715917.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14715917 = 31 ⋅474707.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71951741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71951749) 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, 2930 + ... + 12348.

It is an arithmetic number, because the mean of its divisors is an integer number (17992200).

Almost surely, 2^71951741 is an apocalyptic number.

It is an amenable number.

71951741 is a deficient number, since it is larger than the sum of its proper divisors (17059).

71951741 is an equidigital number, since it uses as much as digits as its factorization.

71951741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17058.

The product of its digits is 8820, while the sum is 35.

The square root of 71951741 is about 8482.4372087272. The cubic root of 71951741 is about 415.9237968315.

The spelling of 71951741 in words is "seventy-one million, nine hundred fifty-one thousand, seven hundred forty-one".