1318125026 has 4 divisors (see below), whose sum is σ = 1977187542. Its totient is φ = 659062512.

The previous prime is 1318125001. The next prime is 1318125047. The reversal of 1318125026 is 6205218131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 914155225 + 403969801 = 30235^2 + 20099^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1318125026.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 329531255 + ... + 329531258.

Almost surely, 2^1318125026 is an apocalyptic number.

1318125026 is a deficient number, since it is larger than the sum of its proper divisors (659062516).

1318125026 is an equidigital number, since it uses as much as digits as its factorization.

1318125026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659062515.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1318125026 is about 36305.9915991837. The cubic root of 1318125026 is about 1096.4416770160.

The spelling of 1318125026 in words is "one billion, three hundred eighteen million, one hundred twenty-five thousand, twenty-six".