72109359 has 40 divisors (see below), whose sum is σ = 130366368. Its totient is φ = 38776320.

The previous prime is 72109357. The next prime is 72109361. The reversal of 72109359 is 95390127.

It is an interprime number because it is at equal distance from previous prime (72109357) and next prime (72109361).

It is not a de Polignac number, because 72109359 - 2¹ = 72109357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72109357) 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 39 ways as a sum of consecutive naturals, for example, 5899 + ... + 13379.

Almost surely, 2^72109359 is an apocalyptic number.

72109359 is a deficient number, since it is larger than the sum of its proper divisors (58257009).

72109359 is a wasteful number, since it uses less digits than its factorization.

72109359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7517 (or 7508 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 72109359 is about 8491.7229700456. The cubic root of 72109359 is about 416.2272838833.

The spelling of 72109359 in words is "seventy-two million, one hundred nine thousand, three hundred fifty-nine".