170051491129 has 9 divisors (see below), whose sum is σ = 184144402029. Its totient is φ = 156965658720.

The previous prime is 170051491123. The next prime is 170051491219. The reversal of 170051491129 is 921194150071.

The square root of 170051491129 is 412373.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 121804490025 + 48247001104 = 349005^2 + 219652^2 .

It is not a de Polignac number, because 170051491129 - 2³ = 170051491121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 170051491091 and 170051491100.

It is not an unprimeable number, because it can be changed into a prime (170051491121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5344989 + ... + 5376709.

Almost surely, 2^170051491129 is an apocalyptic number.

170051491129 is the 412373-rd square number.

170051491129 is the 206187-th centered octagonal number.

It is an amenable number.

170051491129 is a deficient number, since it is larger than the sum of its proper divisors (14092910900).

170051491129 is an frugal number, since it uses more digits than its factorization.

170051491129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63468 (or 31734 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 40.

The spelling of 170051491129 in words is "one hundred seventy billion, fifty-one million, four hundred ninety-one thousand, one hundred twenty-nine".