171400253 has 8 divisors (see below), whose sum is σ = 172569600. Its totient is φ = 170234928.

The previous prime is 171400241. The next prime is 171400259. The reversal of 171400253 is 352004171.

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 171400253 - 2⁶ = 171400189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171400259) 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, 159803 + ... + 160871.

It is an arithmetic number, because the mean of its divisors is an integer number (21571200).

Almost surely, 2^171400253 is an apocalyptic number.

It is an amenable number.

171400253 is a deficient number, since it is larger than the sum of its proper divisors (1169347).

171400253 is a wasteful number, since it uses less digits than its factorization.

171400253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 171400253 is about 13091.9919416413. The cubic root of 171400253 is about 555.4826340392.

The spelling of 171400253 in words is "one hundred seventy-one million, four hundred thousand, two hundred fifty-three".