745117 has 2 divisors, whose sum is σ = 745118. Its totient is φ = 745116.

The previous prime is 745103. The next prime is 745133. The reversal of 745117 is 711547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 649636 + 95481 = 806^2 + 309^2 .

It is a cyclic number.

It is not a de Polignac number, because 745117 - 2¹¹ = 743069 is a prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 745091 and 745100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372558 + 372559.

It is an arithmetic number, because the mean of its divisors is an integer number (372559).

2⁷⁴⁵¹¹⁷ is an apocalyptic number.

It is an amenable number.

745117 is a deficient number, since it is larger than the sum of its proper divisors (1).

745117 is an equidigital number, since it uses as much as digits as its factorization.

745117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 980, while the sum is 25.

The square root of 745117 is about 863.2015987010. The cubic root of 745117 is about 90.6584223929.

The spelling of 745117 in words is "seven hundred forty-five thousand, one hundred seventeen".