1318307427 has 32 divisors (see below), whose sum is σ = 1982534400. Its totient is φ = 865681344.

The previous prime is 1318307423. The next prime is 1318307437. The reversal of 1318307427 is 7247038131.

1318307427 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1318307427 - 2² = 1318307423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1318307391 and 1318307400.

It is not an unprimeable number, because it can be changed into a prime (1318307423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 736828 + ... + 738614.

It is an arithmetic number, because the mean of its divisors is an integer number (61954200).

Almost surely, 2^1318307427 is an apocalyptic number.

1318307427 is a deficient number, since it is larger than the sum of its proper divisors (664226973).

1318307427 is a wasteful number, since it uses less digits than its factorization.

1318307427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192 (or 2186 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1318307427 is about 36308.5035081315. The cubic root of 1318307427 is about 1096.4922495667.

The spelling of 1318307427 in words is "one billion, three hundred eighteen million, three hundred seven thousand, four hundred twenty-seven".