170145396 has 18 divisors (see below), whose sum is σ = 430089842. Its totient is φ = 56715120.

The previous prime is 170145389. The next prime is 170145427. The reversal of 170145396 is 693541071.

It can be written as a sum of positive squares in only one way, i.e., 127373796 + 42771600 = 11286^2 + 6540^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4726261 = 170145396 / (1 + 7 + 0 + 1 + 4 + 5 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 170145396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2363095 + ... + 2363166.

Almost surely, 2^170145396 is an apocalyptic number.

It is an amenable number.

170145396 is an abundant number, since it is smaller than the sum of its proper divisors (259944446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

170145396 is a wasteful number, since it uses less digits than its factorization.

170145396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726271 (or 4726266 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 170145396 is about 13043.9793008115. The cubic root of 170145396 is about 554.1237108983.

The spelling of 170145396 in words is "one hundred seventy million, one hundred forty-five thousand, three hundred ninety-six".