1250250313 has 8 divisors (see below), whose sum is σ = 1382813768. Its totient is φ = 1122885504.

The previous prime is 1250250277. The next prime is 1250250317. The reversal of 1250250313 is 3130520521.

It can be written as a sum of positive squares in 4 ways, for example, as 644499769 + 605750544 = 25387^2 + 24612^2 .

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

It is not a de Polignac number, because 1250250313 - 2²¹ = 1248153161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1250250317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299156 + ... + 1300117.

It is an arithmetic number, because the mean of its divisors is an integer number (172851721).

Almost surely, 2^1250250313 is an apocalyptic number.

1250250313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1250250313 is a deficient number, since it is larger than the sum of its proper divisors (132563455).

1250250313 is a wasteful number, since it uses less digits than its factorization.

1250250313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2599323.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1250250313 is about 35358.8788425199. The cubic root of 1250250313 is about 1077.2892446183.

Adding to 1250250313 its reverse (3130520521), we get a palindrome (4380770834).

The spelling of 1250250313 in words is "one billion, two hundred fifty million, two hundred fifty thousand, three hundred thirteen".