865150073 has 4 divisors (see below), whose sum is σ = 865212288. Its totient is φ = 865087860.

The previous prime is 865150057. The next prime is 865150141. The reversal of 865150073 is 370051568.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 865150073 - 2⁴ = 865150057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (865155073) 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, 368 + ... + 41598.

It is an arithmetic number, because the mean of its divisors is an integer number (216303072).

Almost surely, 2^865150073 is an apocalyptic number.

It is an amenable number.

865150073 is a deficient number, since it is larger than the sum of its proper divisors (62215).

865150073 is a wasteful number, since it uses less digits than its factorization.

865150073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62214.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 865150073 is about 29413.4335465957. The cubic root of 865150073 is about 952.8630426754.

The spelling of 865150073 in words is "eight hundred sixty-five million, one hundred fifty thousand, seventy-three".