72103000 has 32 divisors (see below), whose sum is σ = 168723360. Its totient is φ = 28840800.

The previous prime is 72102997. The next prime is 72103007. The reversal of 72103000 is 30127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72103007) 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, 35052 + ... + 37051.

It is an arithmetic number, because the mean of its divisors is an integer number (5272605).

Almost surely, 2^72103000 is an apocalyptic number.

It is an amenable number.

72103000 is an abundant number, since it is smaller than the sum of its proper divisors (96620360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72103000 is a wasteful number, since it uses less digits than its factorization.

72103000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72124 (or 72110 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 72103000 is about 8491.3485383654. The cubic root of 72103000 is about 416.2150484530.

Adding to 72103000 its reverse (30127), we get a palindrome (72133127).

The spelling of 72103000 in words is "seventy-two million, one hundred three thousand".