1260388130 has 8 divisors (see below), whose sum is σ = 2268698652. Its totient is φ = 504155248.

The previous prime is 1260388099. The next prime is 1260388139. The reversal of 1260388130 is 318830621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1023936001 + 236452129 = 31999^2 + 15377^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1260388139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63019397 + ... + 63019416.

Almost surely, 2^1260388130 is an apocalyptic number.

1260388130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1260388130 is a deficient number, since it is larger than the sum of its proper divisors (1008310522).

1260388130 is a wasteful number, since it uses less digits than its factorization.

1260388130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126038820.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1260388130 is about 35501.9454396516. The cubic root of 1260388130 is about 1080.1931896058.

The spelling of 1260388130 in words is "one billion, two hundred sixty million, three hundred eighty-eight thousand, one hundred thirty".