133162171 has 8 divisors (see below), whose sum is σ = 138211920. Its totient is φ = 128143008.

The previous prime is 133162151. The next prime is 133162189. The reversal of 133162171 is 171261331.

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 133162171 - 2¹⁷ = 133031099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133162151) 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, 1425 + ... + 16381.

It is an arithmetic number, because the mean of its divisors is an integer number (17276490).

Almost surely, 2^133162171 is an apocalyptic number.

133162171 is a deficient number, since it is larger than the sum of its proper divisors (5049749).

133162171 is a wasteful number, since it uses less digits than its factorization.

133162171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15293.

The product of its digits is 756, while the sum is 25.

The square root of 133162171 is about 11539.5914572397. The cubic root of 133162171 is about 510.6542558022.

The spelling of 133162171 in words is "one hundred thirty-three million, one hundred sixty-two thousand, one hundred seventy-one".