1313794251 has 48 divisors (see below), whose sum is σ = 2371299840. Its totient is φ = 680952960.

The previous prime is 1313794249. The next prime is 1313794259. The reversal of 1313794251 is 1524973131.

1313794251 is a `hidden beast` number, since 1 + 31 + 379 + 4 + 251 = 666.

It is not a de Polignac number, because 1313794251 - 2¹ = 1313794249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313794259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346695 + ... + 350463.

It is an arithmetic number, because the mean of its divisors is an integer number (49402080).

Almost surely, 2^1313794251 is an apocalyptic number.

1313794251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313794251 is a deficient number, since it is larger than the sum of its proper divisors (1057505589).

1313794251 is a wasteful number, since it uses less digits than its factorization.

1313794251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296 (or 4293 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1313794251 is about 36246.2998249476. The cubic root of 1313794251 is about 1095.2395522683.

The spelling of 1313794251 in words is "one billion, three hundred thirteen million, seven hundred ninety-four thousand, two hundred fifty-one".