72302105 has 8 divisors (see below), whose sum is σ = 91866312. Its totient is φ = 54439168.

The previous prime is 72302093. The next prime is 72302159. The reversal of 72302105 is 50120327.

It can be written as a sum of positive squares in 4 ways, for example, as 39891856 + 32410249 = 6316^2 + 5693^2 .

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

It is not a de Polignac number, because 72302105 - 2¹⁶ = 72236569 is a prime.

It is a Duffinian number.

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, 425222 + ... + 425391.

It is an arithmetic number, because the mean of its divisors is an integer number (11483289).

Almost surely, 2^72302105 is an apocalyptic number.

It is an amenable number.

72302105 is a deficient number, since it is larger than the sum of its proper divisors (19564207).

72302105 is a wasteful number, since it uses less digits than its factorization.

72302105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850635.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 72302105 is about 8503.0644475977. The cubic root of 72302105 is about 416.5978079988.

The spelling of 72302105 in words is "seventy-two million, three hundred two thousand, one hundred five".