1313450523 has 72 divisors (see below), whose sum is σ = 2439300864. Its totient is φ = 666277920.

The previous prime is 1313450521. The next prime is 1313450527. The reversal of 1313450523 is 3250543131.

1313450523 is a `hidden beast` number, since 1 + 3 + 134 + 5 + 0 + 523 = 666.

It is not a de Polignac number, because 1313450523 - 2¹ = 1313450521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313450521) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 325786 + ... + 329792.

Almost surely, 2^1313450523 is an apocalyptic number.

1313450523 is a deficient number, since it is larger than the sum of its proper divisors (1125850341).

1313450523 is a wasteful number, since it uses less digits than its factorization.

1313450523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1313450523 is about 36241.5579549224. The cubic root of 1313450523 is about 1095.1440280930.

Adding to 1313450523 its reverse (3250543131), we get a palindrome (4563993654).

The spelling of 1313450523 in words is "one billion, three hundred thirteen million, four hundred fifty thousand, five hundred twenty-three".