173401385 has 4 divisors (see below), whose sum is σ = 208081668. Its totient is φ = 138721104.

The previous prime is 173401381. The next prime is 173401387. The reversal of 173401385 is 583104371.

173401385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583104371 = 127 ⋅4591373.

It can be written as a sum of positive squares in 2 ways, for example, as 36675136 + 136726249 = 6056^2 + 11693^2 .

It is a cyclic number.

It is not a de Polignac number, because 173401385 - 2² = 173401381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173401381) 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, 17340134 + ... + 17340143.

It is an arithmetic number, because the mean of its divisors is an integer number (52020417).

Almost surely, 2^173401385 is an apocalyptic number.

It is an amenable number.

173401385 is a deficient number, since it is larger than the sum of its proper divisors (34680283).

173401385 is an equidigital number, since it uses as much as digits as its factorization.

173401385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34680282.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 173401385 is about 13168.1959660388. The cubic root of 173401385 is about 557.6360651084.

The spelling of 173401385 in words is "one hundred seventy-three million, four hundred one thousand, three hundred eighty-five".