171428498 has 4 divisors (see below), whose sum is σ = 257142750. Its totient is φ = 85714248.

The previous prime is 171428461. The next prime is 171428501. The reversal of 171428498 is 894824171.

171428498 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.

It can be written as a sum of positive squares in only one way, i.e., 171426649 + 1849 = 13093^2 + 43^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42857123 + ... + 42857126.

Almost surely, 2^171428498 is an apocalyptic number.

171428498 is a deficient number, since it is larger than the sum of its proper divisors (85714252).

171428498 is an equidigital number, since it uses as much as digits as its factorization.

171428498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85714251.

The product of its digits is 129024, while the sum is 44.

The square root of 171428498 is about 13093.0706100594. The cubic root of 171428498 is about 555.5131449729.

The spelling of 171428498 in words is "one hundred seventy-one million, four hundred twenty-eight thousand, four hundred ninety-eight".