72196265 has 8 divisors (see below), whose sum is σ = 87402888. Its totient is φ = 57245440.

The previous prime is 72196261. The next prime is 72196291. The reversal of 72196265 is 56269127.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3952144 + 68244121 = 1988^2 + 8261^2 .

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

It is not a de Polignac number, because 72196265 - 2² = 72196261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72196261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63326 + ... + 64455.

It is an arithmetic number, because the mean of its divisors is an integer number (10925361).

Almost surely, 2^72196265 is an apocalyptic number.

It is an amenable number.

72196265 is a deficient number, since it is larger than the sum of its proper divisors (15206623).

72196265 is a wasteful number, since it uses less digits than its factorization.

72196265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127899.

The product of its digits is 45360, while the sum is 38.

The square root of 72196265 is about 8496.8385297121. The cubic root of 72196265 is about 416.3944287441.

The spelling of 72196265 in words is "seventy-two million, one hundred ninety-six thousand, two hundred sixty-five".