745171373 has 4 divisors (see below), whose sum is σ = 745786908. Its totient is φ = 744555840.

The previous prime is 745171337. The next prime is 745171391. The reversal of 745171373 is 373171547.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 281501284 + 463670089 = 16778^2 + 21533^2 .

It is a cyclic number.

It is not a de Polignac number, because 745171373 - 2⁶ = 745171309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745171073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305948 + ... + 308373.

It is an arithmetic number, because the mean of its divisors is an integer number (186446727).

Almost surely, 2^745171373 is an apocalyptic number.

It is an amenable number.

745171373 is a deficient number, since it is larger than the sum of its proper divisors (615535).

745171373 is a wasteful number, since it uses less digits than its factorization.

745171373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615534.

The product of its digits is 61740, while the sum is 38.

The square root of 745171373 is about 27297.8272578607. The cubic root of 745171373 is about 906.6062752782.

The spelling of 745171373 in words is "seven hundred forty-five million, one hundred seventy-one thousand, three hundred seventy-three".