72135003 has 8 divisors (see below), whose sum is σ = 96320016. Its totient is φ = 48020000.

The previous prime is 72134999. The next prime is 72135053. The reversal of 72135003 is 30053127.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72135003 - 2² = 72134999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72135053) 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, 15048 + ... + 19253.

It is an arithmetic number, because the mean of its divisors is an integer number (12040002).

Almost surely, 2^72135003 is an apocalyptic number.

72135003 is a deficient number, since it is larger than the sum of its proper divisors (24185013).

72135003 is a wasteful number, since it uses less digits than its factorization.

72135003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35005.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 72135003 is about 8493.2327767464. The cubic root of 72135003 is about 416.2766185216.

The spelling of 72135003 in words is "seventy-two million, one hundred thirty-five thousand, three".