172117435 has 16 divisors (see below), whose sum is σ = 249932736. Its totient is φ = 111080448.

The previous prime is 172117423. The next prime is 172117453. The reversal of 172117435 is 534711271.

172117435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172117435 - 2⁵ = 172117403 is a prime.

It is a super-2 number, since 2×172117435² = 59248822861958450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172117397 and 172117406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144042 + ... + 145231.

It is an arithmetic number, because the mean of its divisors is an integer number (15620796).

Almost surely, 2^172117435 is an apocalyptic number.

172117435 is a deficient number, since it is larger than the sum of its proper divisors (77815301).

172117435 is a wasteful number, since it uses less digits than its factorization.

172117435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289302.

The product of its digits is 5880, while the sum is 31.

The square root of 172117435 is about 13119.3534520570. The cubic root of 172117435 is about 556.2563158817.

The spelling of 172117435 in words is "one hundred seventy-two million, one hundred seventeen thousand, four hundred thirty-five".