171369057 has 4 divisors (see below), whose sum is σ = 228492080. Its totient is φ = 114246036.

The previous prime is 171369043. The next prime is 171369109. The reversal of 171369057 is 750963171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 171369057 - 2⁴ = 171369041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171369007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28561507 + ... + 28561512.

It is an arithmetic number, because the mean of its divisors is an integer number (57123020).

Almost surely, 2^171369057 is an apocalyptic number.

It is an amenable number.

171369057 is a deficient number, since it is larger than the sum of its proper divisors (57123023).

171369057 is an equidigital number, since it uses as much as digits as its factorization.

171369057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57123022.

The product of its (nonzero) digits is 39690, while the sum is 39.

The square root of 171369057 is about 13090.8004720873. The cubic root of 171369057 is about 555.4489314680.

The spelling of 171369057 in words is "one hundred seventy-one million, three hundred sixty-nine thousand, fifty-seven".