170840541 has 4 divisors (see below), whose sum is σ = 227787392. Its totient is φ = 113893692.

The previous prime is 170840521. The next prime is 170840603. The reversal of 170840541 is 145048071.

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 170840541 - 2¹⁹ = 170316253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 170840499 and 170840508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170840521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28473421 + ... + 28473426.

It is an arithmetic number, because the mean of its divisors is an integer number (56946848).

Almost surely, 2^170840541 is an apocalyptic number.

It is an amenable number.

170840541 is a deficient number, since it is larger than the sum of its proper divisors (56946851).

170840541 is an equidigital number, since it uses as much as digits as its factorization.

170840541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56946850.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 170840541 is about 13070.5983413155. The cubic root of 170840541 is about 554.8773269982.

The spelling of 170840541 in words is "one hundred seventy million, eight hundred forty thousand, five hundred forty-one".