171956452 has 6 divisors (see below), whose sum is σ = 300923798. Its totient is φ = 85978224.

The previous prime is 171956443. The next prime is 171956453. The reversal of 171956452 is 254659171.

It can be written as a sum of positive squares in only one way, i.e., 132342016 + 39614436 = 11504^2 + 6294^2 .

It is not an unprimeable number, because it can be changed into a prime (171956453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21494553 + ... + 21494560.

Almost surely, 2^171956452 is an apocalyptic number.

It is an amenable number.

171956452 is a deficient number, since it is larger than the sum of its proper divisors (128967346).

171956452 is a wasteful number, since it uses less digits than its factorization.

171956452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42989117 (or 42989115 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 171956452 is about 13113.2166915673. The cubic root of 171956452 is about 556.0828379240.

The spelling of 171956452 in words is "one hundred seventy-one million, nine hundred fifty-six thousand, four hundred fifty-two".