172104735 has 32 divisors (see below), whose sum is σ = 301022208. Its totient is φ = 83272320.

The previous prime is 172104731. The next prime is 172104749. The reversal of 172104735 is 537401271.

It is not a de Polignac number, because 172104735 - 2² = 172104731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172104731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120234 + ... + 121656.

It is an arithmetic number, because the mean of its divisors is an integer number (9406944).

Almost surely, 2^172104735 is an apocalyptic number.

172104735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172104735 is a deficient number, since it is larger than the sum of its proper divisors (128917473).

172104735 is a wasteful number, since it uses less digits than its factorization.

172104735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 172104735 is about 13118.8694253735. The cubic root of 172104735 is about 556.2426340816.

It can be divided in two parts, 17210 and 4735, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 172104735 in words is "one hundred seventy-two million, one hundred four thousand, seven hundred thirty-five".