1403173045 has 4 divisors (see below), whose sum is σ = 1683807660. Its totient is φ = 1122538432.

The previous prime is 1403173007. The next prime is 1403173049. The reversal of 1403173045 is 5403713041.

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 554790916 + 848382129 = 23554^2 + 29127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403173045 - 2¹¹ = 1403170997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403173049) 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, 140317300 + ... + 140317309.

It is an arithmetic number, because the mean of its divisors is an integer number (420951915).

Almost surely, 2^1403173045 is an apocalyptic number.

It is an amenable number.

1403173045 is a deficient number, since it is larger than the sum of its proper divisors (280634615).

1403173045 is an equidigital number, since it uses as much as digits as its factorization.

1403173045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280634614.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1403173045 is about 37458.9514669057. The cubic root of 1403173045 is about 1119.5334592270.

Adding to 1403173045 its reverse (5403713041), we get a palindrome (6806886086).

The spelling of 1403173045 in words is "one billion, four hundred three million, one hundred seventy-three thousand, forty-five".