1318870225 has 12 divisors (see below), whose sum is σ = 1647168880. Its totient is φ = 1047502800.

The previous prime is 1318870159. The next prime is 1318870253. The reversal of 1318870225 is 5220788131.

It is not a de Polignac number, because 1318870225 - 2¹³ = 1318862033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186291 + ... + 193240.

Almost surely, 2^1318870225 is an apocalyptic number.

It is an amenable number.

1318870225 is a deficient number, since it is larger than the sum of its proper divisors (328298655).

1318870225 is a wasteful number, since it uses less digits than its factorization.

1318870225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379680 (or 379675 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1318870225 is about 36316.2529041750. The cubic root of 1318870225 is about 1096.6482616970.

The spelling of 1318870225 in words is "one billion, three hundred eighteen million, eight hundred seventy thousand, two hundred twenty-five".