72125659 has 8 divisors (see below), whose sum is σ = 72737280. Its totient is φ = 71517096.

The previous prime is 72125621. The next prime is 72125687. The reversal of 72125659 is 95652127.

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 72125659 - 2⁷ = 72125531 is a prime.

It is a super-2 number, since 2×72125659² = 10404221372368562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72125699) 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, 72882 + ... + 73864.

It is an arithmetic number, because the mean of its divisors is an integer number (9092160).

Almost surely, 2^72125659 is an apocalyptic number.

72125659 is a deficient number, since it is larger than the sum of its proper divisors (611621).

72125659 is a wasteful number, since it uses less digits than its factorization.

72125659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529.

The product of its digits is 37800, while the sum is 37.

The square root of 72125659 is about 8492.6826739258. The cubic root of 72125659 is about 416.2586436295.

The spelling of 72125659 in words is "seventy-two million, one hundred twenty-five thousand, six hundred fifty-nine".