71365061 has 4 divisors (see below), whose sum is σ = 71571072. Its totient is φ = 71159052.

The previous prime is 71365057. The next prime is 71365097. The reversal of 71365061 is 16056317.

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.

It is a cyclic number.

It is not a de Polignac number, because 71365061 - 2² = 71365057 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 (71365961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102485 + ... + 103178.

It is an arithmetic number, because the mean of its divisors is an integer number (17892768).

Almost surely, 2^71365061 is an apocalyptic number.

It is an amenable number.

71365061 is a deficient number, since it is larger than the sum of its proper divisors (206011).

71365061 is a wasteful number, since it uses less digits than its factorization.

71365061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206010.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 71365061 is about 8447.7843840856. The cubic root of 71365061 is about 414.7902573944.

The spelling of 71365061 in words is "seventy-one million, three hundred sixty-five thousand, sixty-one".