72063103 has 4 divisors (see below), whose sum is σ = 82357840. Its totient is φ = 61768368.

The previous prime is 72063091. The next prime is 72063107. The reversal of 72063103 is 30136027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30136027 = 137 ⋅219971.

It is a cyclic number.

It is not a de Polignac number, because 72063103 - 2¹³ = 72054911 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 (72063107) 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, 5147358 + ... + 5147371.

It is an arithmetic number, because the mean of its divisors is an integer number (20589460).

Almost surely, 2^72063103 is an apocalyptic number.

72063103 is a deficient number, since it is larger than the sum of its proper divisors (10294737).

72063103 is a wasteful number, since it uses less digits than its factorization.

72063103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294736.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 72063103 is about 8488.9989398044. The cubic root of 72063103 is about 416.1382657229.

The spelling of 72063103 in words is "seventy-two million, sixty-three thousand, one hundred three".