745797173 has 12 divisors (see below), whose sum is σ = 821347884. Its totient is φ = 676684800.

The previous prime is 745797161. The next prime is 745797179. The reversal of 745797173 is 371797547.

It can be written as a sum of positive squares in 2 ways, for example, as 429028369 + 316768804 = 20713^2 + 17798^2 .

It is not a de Polignac number, because 745797173 - 2¹⁸ = 745535029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745797179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59765 + ... + 71157.

It is an arithmetic number, because the mean of its divisors is an integer number (68445657).

Almost surely, 2^745797173 is an apocalyptic number.

It is an amenable number.

745797173 is a deficient number, since it is larger than the sum of its proper divisors (75550711).

745797173 is a wasteful number, since it uses less digits than its factorization.

745797173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956 (or 11945 counting only the distinct ones).

The product of its digits is 1296540, while the sum is 50.

The square root of 745797173 is about 27309.2873030403. The cubic root of 745797173 is about 906.8599956433.

The spelling of 745797173 in words is "seven hundred forty-five million, seven hundred ninety-seven thousand, one hundred seventy-three".