172900029 has 8 divisors (see below), whose sum is σ = 230610240. Its totient is φ = 115228256.

The previous prime is 172900003. The next prime is 172900061. The reversal of 172900029 is 920009271.

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 172900029 - 2¹³ = 172891837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172899969 and 172900005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172900099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3409 + ... + 18905.

It is an arithmetic number, because the mean of its divisors is an integer number (28826280).

Almost surely, 2^172900029 is an apocalyptic number.

It is an amenable number.

172900029 is a deficient number, since it is larger than the sum of its proper divisors (57710211).

172900029 is a wasteful number, since it uses less digits than its factorization.

172900029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19219.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 172900029 is about 13149.1455615945. The cubic root of 172900029 is about 557.0981146468.

The spelling of 172900029 in words is "one hundred seventy-two million, nine hundred thousand, twenty-nine".