1717372045 has 16 divisors (see below), whose sum is σ = 2203269120. Its totient is φ = 1280519424.

The previous prime is 1717372039. The next prime is 1717372087. The reversal of 1717372045 is 5402737171.

It is a happy number.

It is not a de Polignac number, because 1717372045 - 2¹³ = 1717363853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1717371995 and 1717372013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89325 + ... + 106834.

It is an arithmetic number, because the mean of its divisors is an integer number (137704320).

Almost surely, 2^1717372045 is an apocalyptic number.

It is an amenable number.

1717372045 is a deficient number, since it is larger than the sum of its proper divisors (485897075).

1717372045 is a wasteful number, since it uses less digits than its factorization.

1717372045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196284.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 1717372045 is about 41441.1877846183. The cubic root of 1717372045 is about 1197.5347642100.

The spelling of 1717372045 in words is "one billion, seven hundred seventeen million, three hundred seventy-two thousand, forty-five".