71731461 has 8 divisors (see below), whose sum is σ = 95927104. Its totient is φ = 47678400.

The previous prime is 71731417. The next prime is 71731469. The reversal of 71731461 is 16413717.

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

It is not a de Polignac number, because 71731461 - 2¹⁰ = 71730437 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 (71731469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34465 + ... + 36486.

It is an arithmetic number, because the mean of its divisors is an integer number (11990888).

Almost surely, 2^71731461 is an apocalyptic number.

It is an amenable number.

71731461 is a deficient number, since it is larger than the sum of its proper divisors (24195643).

71731461 is a wasteful number, since it uses less digits than its factorization.

71731461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71291.

The product of its digits is 3528, while the sum is 30.

The square root of 71731461 is about 8469.4427797819. The cubic root of 71731461 is about 415.4989131996.

The spelling of 71731461 in words is "seventy-one million, seven hundred thirty-one thousand, four hundred sixty-one".