1318125610 has 16 divisors (see below), whose sum is σ = 2378113416. Its totient is φ = 526030848.

The previous prime is 1318125593. The next prime is 1318125643. The reversal of 1318125610 is 165218131.

It can be written as a sum of positive squares in 4 ways, for example, as 609447969 + 708677641 = 24687^2 + 26621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147879 + ... + 156538.

Almost surely, 2^1318125610 is an apocalyptic number.

1318125610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1318125610 is a deficient number, since it is larger than the sum of its proper divisors (1059987806).

1318125610 is a wasteful number, since it uses less digits than its factorization.

1318125610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304857.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1318125610 is about 36305.9996419325. Note that the first 3 decimals coincide. The cubic root of 1318125610 is about 1096.4418389435.

The spelling of 1318125610 in words is "one billion, three hundred eighteen million, one hundred twenty-five thousand, six hundred ten".