172102738 has 8 divisors (see below), whose sum is σ = 258248880. Its totient is φ = 86019780.

The previous prime is 172102717. The next prime is 172102751. The reversal of 172102738 is 837201271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8268 + ... + 20311.

It is an arithmetic number, because the mean of its divisors is an integer number (32281110).

Almost surely, 2^172102738 is an apocalyptic number.

172102738 is a deficient number, since it is larger than the sum of its proper divisors (86146142).

172102738 is a wasteful number, since it uses less digits than its factorization.

172102738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31592.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 172102738 is about 13118.7933134111. The cubic root of 172102738 is about 556.2404826382.

The spelling of 172102738 in words is "one hundred seventy-two million, one hundred two thousand, seven hundred thirty-eight".