173490749 has 2 divisors, whose sum is σ = 173490750. Its totient is φ = 173490748.

The previous prime is 173490703. The next prime is 173490773. The reversal of 173490749 is 947094371.

It is a happy number.

173490749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151117849 + 22372900 = 12293^2 + 4730^2 .

It is a cyclic number.

It is not a de Polignac number, because 173490749 - 2¹² = 173486653 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173490799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86745374 + 86745375.

It is an arithmetic number, because the mean of its divisors is an integer number (86745375).

Almost surely, 2^173490749 is an apocalyptic number.

It is an amenable number.

173490749 is a deficient number, since it is larger than the sum of its proper divisors (1).

173490749 is an equidigital number, since it uses as much as digits as its factorization.

173490749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 173490749 is about 13171.5887044806. The cubic root of 173490749 is about 557.7318429501.

The spelling of 173490749 in words is "one hundred seventy-three million, four hundred ninety thousand, seven hundred forty-nine".