173670061 has 8 divisors (see below), whose sum is σ = 177440760. Its totient is φ = 169939968.

The previous prime is 173670059. The next prime is 173670071. The reversal of 173670061 is 160076371.

It can be written as a sum of positive squares in 4 ways, for example, as 352836 + 173317225 = 594^2 + 13165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 173670061 - 2¹ = 173670059 is a prime.

It is a super-2 number, since 2×173670061² = 60322580175487442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173670031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426 + ... + 18691.

It is an arithmetic number, because the mean of its divisors is an integer number (22180095).

Almost surely, 2^173670061 is an apocalyptic number.

It is an amenable number.

173670061 is a deficient number, since it is larger than the sum of its proper divisors (3770699).

173670061 is an equidigital number, since it uses as much as digits as its factorization.

173670061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20303.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 173670061 is about 13178.3937185076. The cubic root of 173670061 is about 557.9239253868.

The spelling of 173670061 in words is "one hundred seventy-three million, six hundred seventy thousand, sixty-one".