71457601 has 4 divisors (see below), whose sum is σ = 72165204. Its totient is φ = 70750000.

The previous prime is 71457599. The next prime is 71457643. The reversal of 71457601 is 10675417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44209201 + 27248400 = 6649^2 + 5220^2 .

It is a cyclic number.

It is not a de Polignac number, because 71457601 - 2¹ = 71457599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71457691) 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, 353650 + ... + 353851.

It is an arithmetic number, because the mean of its divisors is an integer number (18041301).

Almost surely, 2^71457601 is an apocalyptic number.

It is an amenable number.

71457601 is a deficient number, since it is larger than the sum of its proper divisors (707603).

71457601 is a wasteful number, since it uses less digits than its factorization.

71457601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707602.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 71457601 is about 8453.2597854319. The cubic root of 71457601 is about 414.9694679236.

The spelling of 71457601 in words is "seventy-one million, four hundred fifty-seven thousand, six hundred one".