72103533 has 8 divisors (see below), whose sum is σ = 96180096. Its totient is φ = 48048000.

The previous prime is 72103531. The next prime is 72103571. The reversal of 72103533 is 33530127.

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

It is not a de Polignac number, because 72103533 - 2¹ = 72103531 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72103531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6508 + ... + 13658.

It is an arithmetic number, because the mean of its divisors is an integer number (12022512).

Almost surely, 2^72103533 is an apocalyptic number.

It is an amenable number.

72103533 is a deficient number, since it is larger than the sum of its proper divisors (24076563).

72103533 is a wasteful number, since it uses less digits than its factorization.

72103533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10515.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 72103533 is about 8491.3799231927. The cubic root of 72103533 is about 416.2160740325.

The spelling of 72103533 in words is "seventy-two million, one hundred three thousand, five hundred thirty-three".