72305101 has 8 divisors (see below), whose sum is σ = 79003584. Its totient is φ = 65627520.

The previous prime is 72305087. The next prime is 72305111. The reversal of 72305101 is 10150327.

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

It is a cyclic number.

It is not a de Polignac number, because 72305101 - 2¹⁷ = 72174029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72305111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2520 + ... + 12286.

It is an arithmetic number, because the mean of its divisors is an integer number (9875448).

Almost surely, 2^72305101 is an apocalyptic number.

It is an amenable number.

72305101 is a deficient number, since it is larger than the sum of its proper divisors (6698483).

72305101 is a wasteful number, since it uses less digits than its factorization.

72305101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10451.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 72305101 is about 8503.2406175528. The cubic root of 72305101 is about 416.6035621410.

Adding to 72305101 its reverse (10150327), we get a palindrome (82455428).

The spelling of 72305101 in words is "seventy-two million, three hundred five thousand, one hundred one".