1251703130 has 8 divisors (see below), whose sum is σ = 2253065652. Its totient is φ = 500681248.

The previous prime is 1251703129. The next prime is 1251703153. The reversal of 1251703130 is 313071521.

It can be written as a sum of positive squares in 2 ways, for example, as 1199444689 + 52258441 = 34633^2 + 7229^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1251703096 and 1251703105.

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 in 3 ways as a sum of consecutive naturals, for example, 62585147 + ... + 62585166.

Almost surely, 2^1251703130 is an apocalyptic number.

1251703130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1251703130 is a deficient number, since it is larger than the sum of its proper divisors (1001362522).

1251703130 is a wasteful number, since it uses less digits than its factorization.

1251703130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125170320.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1251703130 is about 35379.4167560744. The cubic root of 1251703130 is about 1077.7063606350.

Adding to 1251703130 its reverse (313071521), we get a palindrome (1564774651).

The spelling of 1251703130 in words is "one billion, two hundred fifty-one million, seven hundred three thousand, one hundred thirty".