72064103 has 4 divisors (see below), whose sum is σ = 72194040. Its totient is φ = 71934168.

The previous prime is 72064081. The next prime is 72064117. The reversal of 72064103 is 30146027.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72064103 - 2⁶ = 72064039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72064163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64133 + ... + 65246.

It is an arithmetic number, because the mean of its divisors is an integer number (18048510).

Almost surely, 2^72064103 is an apocalyptic number.

72064103 is a deficient number, since it is larger than the sum of its proper divisors (129937).

72064103 is a wasteful number, since it uses less digits than its factorization.

72064103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129936.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 72064103 is about 8489.0578393600. The cubic root of 72064103 is about 416.1401905930.

The spelling of 72064103 in words is "seventy-two million, sixty-four thousand, one hundred three".