171478954 has 4 divisors (see below), whose sum is σ = 257218434. Its totient is φ = 85739476.

The previous prime is 171478907. The next prime is 171478973. The reversal of 171478954 is 459874171.

It is a happy number.

171478954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 459874171 = 71 ⋅6477101.

It can be written as a sum of positive squares in only one way, i.e., 96569929 + 74909025 = 9827^2 + 8655^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42869737 + ... + 42869740.

Almost surely, 2^171478954 is an apocalyptic number.

171478954 is a deficient number, since it is larger than the sum of its proper divisors (85739480).

171478954 is an equidigital number, since it uses as much as digits as its factorization.

171478954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85739479.

The product of its digits is 282240, while the sum is 46.

The square root of 171478954 is about 13094.9972890413. The cubic root of 171478954 is about 555.5676404275.

The spelling of 171478954 in words is "one hundred seventy-one million, four hundred seventy-eight thousand, nine hundred fifty-four".