173001409 has 9 divisors (see below), whose sum is σ = 201353697. Its totient is φ = 148208004.

The previous prime is 173001397. The next prime is 173001419. The reversal of 173001409 is 904100371.

The square root of 173001409 is 13153.

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

173001409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 173001409 - 2⁷ = 173001281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173001419) 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, 91132 + ... + 93010.

It is an arithmetic number, because the mean of its divisors is an integer number (22372633).

Almost surely, 2^173001409 is an apocalyptic number.

173001409 is the 13153-rd square number.

173001409 is the 6577-th centered octagonal number.

It is an amenable number.

173001409 is a deficient number, since it is larger than the sum of its proper divisors (28352288).

173001409 is an frugal number, since it uses more digits than its factorization.

173001409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The cubic root of 173001409 is about 557.2069782717.

Multiplying 173001409 by its sum of digits (25), we get a square (4325035225 = 65765²).

The spelling of 173001409 in words is "one hundred seventy-three million, one thousand, four hundred nine".