172161119 has 8 divisors (see below), whose sum is σ = 188903232. Its totient is φ = 155918880.

The previous prime is 172161107. The next prime is 172161127. The reversal of 172161119 is 911161271.

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

It is not a de Polignac number, because 172161119 - 2⁴ = 172161103 is a prime.

It is a super-2 number, since 2×172161119² = 59278901790664322, 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 = 172161091 and 172161100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172161149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124247 + ... + 125624.

It is an arithmetic number, because the mean of its divisors is an integer number (23612904).

Almost surely, 2^172161119 is an apocalyptic number.

172161119 is a deficient number, since it is larger than the sum of its proper divisors (16742113).

172161119 is a wasteful number, since it uses less digits than its factorization.

172161119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249937.

The product of its digits is 756, while the sum is 29.

The square root of 172161119 is about 13121.0182150624. The cubic root of 172161119 is about 556.3033718262.

The spelling of 172161119 in words is "one hundred seventy-two million, one hundred sixty-one thousand, one hundred nineteen".