72008545 has 8 divisors (see below), whose sum is σ = 98754624. Its totient is φ = 49377264.

The previous prime is 72008543. The next prime is 72008551. The reversal of 72008545 is 54580027.

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 72008545 - 2¹ = 72008543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72008543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028659 + ... + 1028728.

It is an arithmetic number, because the mean of its divisors is an integer number (12344328).

Almost surely, 2^72008545 is an apocalyptic number.

It is an amenable number.

72008545 is a deficient number, since it is larger than the sum of its proper divisors (26746079).

72008545 is a wasteful number, since it uses less digits than its factorization.

72008545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057399.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 72008545 is about 8485.7848782537. The cubic root of 72008545 is about 416.0332216596.

The spelling of 72008545 in words is "seventy-two million, eight thousand, five hundred forty-five".