1306131452 has 48 divisors (see below), whose sum is σ = 2421135360. Its totient is φ = 615312192.

The previous prime is 1306131389. The next prime is 1306131469. The reversal of 1306131452 is 2541316031.

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, 2726549 + ... + 2727027.

It is an arithmetic number, because the mean of its divisors is an integer number (50440320).

Almost surely, 2^1306131452 is an apocalyptic number.

It is an amenable number.

1306131452 is a deficient number, since it is larger than the sum of its proper divisors (1115003908).

1306131452 is a wasteful number, since it uses less digits than its factorization.

1306131452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1306131452 is about 36140.4406724655. The cubic root of 1306131452 is about 1093.1060445718.

Adding to 1306131452 its reverse (2541316031), we get a palindrome (3847447483).

The spelling of 1306131452 in words is "one billion, three hundred six million, one hundred thirty-one thousand, four hundred fifty-two".