72102065 has 8 divisors (see below), whose sum is σ = 98882880. Its totient is φ = 49441392.

The previous prime is 72102059. The next prime is 72102077. The reversal of 72102065 is 56020127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72102065 - 2¹⁸ = 71839921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72102065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029995 + ... + 1030064.

It is an arithmetic number, because the mean of its divisors is an integer number (12360360).

Almost surely, 2^72102065 is an apocalyptic number.

It is an amenable number.

72102065 is a deficient number, since it is larger than the sum of its proper divisors (26780815).

72102065 is a wasteful number, since it uses less digits than its factorization.

72102065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060071.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 72102065 is about 8491.2934821498. The cubic root of 72102065 is about 416.2132493473.

The spelling of 72102065 in words is "seventy-two million, one hundred two thousand, sixty-five".