72140103 has 24 divisors (see below), whose sum is σ = 121524000. Its totient is φ = 41221152.

The previous prime is 72140083. The next prime is 72140113. The reversal of 72140103 is 30104127.

It is not a de Polignac number, because 72140103 - 2¹⁶ = 72074567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72140113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8598 + ... + 14771.

It is an arithmetic number, because the mean of its divisors is an integer number (5063500).

Almost surely, 2^72140103 is an apocalyptic number.

72140103 is a deficient number, since it is larger than the sum of its proper divisors (49383897).

72140103 is a wasteful number, since it uses less digits than its factorization.

72140103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23396 (or 23379 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 72140103 is about 8493.5330104733. The cubic root of 72140103 is about 416.2864286491.

The spelling of 72140103 in words is "seventy-two million, one hundred forty thousand, one hundred three".