71241065 has 16 divisors (see below), whose sum is σ = 99043968. Its totient is φ = 48180096.

The previous prime is 71241061. The next prime is 71241077. The reversal of 71241065 is 56014217.

It is a cyclic number.

It is not a de Polignac number, because 71241065 - 2² = 71241061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71241061) 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, 11387 + ... + 16496.

It is an arithmetic number, because the mean of its divisors is an integer number (6190248).

Almost surely, 2^71241065 is an apocalyptic number.

It is an amenable number.

71241065 is a deficient number, since it is larger than the sum of its proper divisors (27802903).

71241065 is a wasteful number, since it uses less digits than its factorization.

71241065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27968.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 71241065 is about 8440.4422277509. The cubic root of 71241065 is about 414.5498869735.

The spelling of 71241065 in words is "seventy-one million, two hundred forty-one thousand, sixty-five".