1023173 has 2 divisors, whose sum is σ = 1023174. Its totient is φ = 1023172.

The previous prime is 1023167. The next prime is 1023199. The reversal of 1023173 is 3713201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 954529 + 68644 = 977^2 + 262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023173 - 2¹² = 1019077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511586 + 511587.

It is an arithmetic number, because the mean of its divisors is an integer number (511587).

2^1023173 is an apocalyptic number.

It is an amenable number.

1023173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023173 is an equidigital number, since it uses as much as digits as its factorization.

1023173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1023173 is about 1011.5201431509. The cubic root of 1023173 is about 100.7665424464.

Adding to 1023173 its reverse (3713201), we get a palindrome (4736374).

The spelling of 1023173 in words is "one million, twenty-three thousand, one hundred seventy-three".