172804730139 has 6 divisors (see below), whose sum is σ = 249606832436. Its totient is φ = 115203153420.

The previous prime is 172804730093. The next prime is 172804730141. The reversal of 172804730139 is 931037408271.

172804730139 is a `hidden beast` number, since 1 + 72 + 80 + 473 + 0 + 1 + 39 = 666.

It is not a de Polignac number, because 172804730139 - 2¹⁵ = 172804697371 is a prime.

It is a super-2 number, since 2×172804730139² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172804730094 and 172804730103.

It is not an unprimeable number, because it can be changed into a prime (172804730339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9600262777 + ... + 9600262794.

Almost surely, 2^172804730139 is an apocalyptic number.

172804730139 is a deficient number, since it is larger than the sum of its proper divisors (76802102297).

172804730139 is a wasteful number, since it uses less digits than its factorization.

172804730139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200525577 (or 19200525574 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 172804730139 in words is "one hundred seventy-two billion, eight hundred four million, seven hundred thirty thousand, one hundred thirty-nine".