73127565 has 48 divisors (see below), whose sum is σ = 146659968. Its totient is φ = 33015168.

The previous prime is 73127533. The next prime is 73127567. The reversal of 73127565 is 56572137.

73127565 is a `hidden beast` number, since 73 + 1 + 27 + 565 = 666.

It is not a de Polignac number, because 73127565 - 2⁵ = 73127533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73127567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24747 + ... + 27543.

It is an arithmetic number, because the mean of its divisors is an integer number (3055416).

Almost surely, 2^73127565 is an apocalyptic number.

It is an amenable number.

73127565 is an abundant number, since it is smaller than the sum of its proper divisors (73532403).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73127565 is a wasteful number, since it uses less digits than its factorization.

73127565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898 (or 2895 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 73127565 is about 8551.4656638497. The cubic root of 73127565 is about 418.1772197108.

The spelling of 73127565 in words is "seventy-three million, one hundred twenty-seven thousand, five hundred sixty-five".